EP3439814A4 - Unit cell titanium casting - Google Patents

Unit cell titanium casting Download PDF

Info

Publication number
EP3439814A4
EP3439814A4 EP17779664.6A EP17779664A EP3439814A4 EP 3439814 A4 EP3439814 A4 EP 3439814A4 EP 17779664 A EP17779664 A EP 17779664A EP 3439814 A4 EP3439814 A4 EP 3439814A4
Authority
EP
European Patent Office
Prior art keywords
unit cell
titanium casting
cell titanium
casting
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17779664.6A
Other languages
German (de)
French (fr)
Other versions
EP3439814B1 (en
EP3439814A1 (en
Inventor
Norm SMITH
Lowell WICKETT
Jan PARAISO
Mark Leposky
Jeff Cross
John Sheehan
Bill Richardson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Topgolf Callaway Brands Corp
Original Assignee
Callaway Golf Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Callaway Golf Co filed Critical Callaway Golf Co
Priority claimed from PCT/US2017/025955 external-priority patent/WO2017176763A1/en
Publication of EP3439814A1 publication Critical patent/EP3439814A1/en
Publication of EP3439814A4 publication Critical patent/EP3439814A4/en
Application granted granted Critical
Publication of EP3439814B1 publication Critical patent/EP3439814B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00Pressure casting; Vacuum casting
    • B22D18/06Vacuum casting, i.e. making use of vacuum to fill the mould
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00Pressure casting; Vacuum casting
    • B22D18/04Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00Pressure casting; Vacuum casting
    • B22D18/08Controlling, supervising, e.g. for safety reasons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002Castings of light metals
    • B22D21/005Castings of light metals with high melting point, e.g. Be 1280 degrees C, Ti 1725 degrees C

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Dental Prosthetics (AREA)
EP17779664.6A 2016-04-06 2017-04-04 Unit cell titanium casting Active EP3439814B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662319215P 2016-04-06 2016-04-06
US201662318854P 2016-04-06 2016-04-06
PCT/US2017/025955 WO2017176763A1 (en) 2016-04-06 2017-04-04 Unit cell titanium casting

Publications (3)

Publication Number Publication Date
EP3439814A1 EP3439814A1 (en) 2019-02-13
EP3439814A4 true EP3439814A4 (en) 2019-09-18
EP3439814B1 EP3439814B1 (en) 2020-12-09

Family

ID=61022915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17779664.6A Active EP3439814B1 (en) 2016-04-06 2017-04-04 Unit cell titanium casting

Country Status (3)

Country Link
EP (1) EP3439814B1 (en)
CN (1) CN108883463A (en)
TW (1) TW201738389A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116274895B (en) * 2023-03-23 2023-11-07 陕西天成航空材料有限公司 Preparation method of titanium alloy cast ingot with uniform components

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478270A (en) * 1981-04-01 1984-10-23 Interlake, Inc. Apparatus for casting low-density alloys
RU2036049C1 (en) * 1991-03-19 1995-05-27 Всероссийский научно-исследовательский институт авиационных материалов Plant for making oriented-crystallization castings
JPH09173512A (en) * 1996-11-28 1997-07-08 Mitsubishi Materials Corp Manufacture of golf club head
RU2300443C1 (en) * 2005-09-15 2007-06-10 Федеральное государственное унитарное предприятие "Московское машиностроительное производственное предприятие "Салют" Apparatus for casting in vacuum
CN104646647A (en) * 2015-01-16 2015-05-27 马旭东 Titanium-based alloy induction melting bottom leakage type vacuum suction casting device and control method
CN204584231U (en) * 2015-01-16 2015-08-26 马旭东 Titanium-base alloy induction melting leakage type suction pouring equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193607A (en) * 1990-05-15 1993-03-16 Daido Tokushuko K.K. Method for precision casting of titanium or titanium alloy

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478270A (en) * 1981-04-01 1984-10-23 Interlake, Inc. Apparatus for casting low-density alloys
RU2036049C1 (en) * 1991-03-19 1995-05-27 Всероссийский научно-исследовательский институт авиационных материалов Plant for making oriented-crystallization castings
JPH09173512A (en) * 1996-11-28 1997-07-08 Mitsubishi Materials Corp Manufacture of golf club head
RU2300443C1 (en) * 2005-09-15 2007-06-10 Федеральное государственное унитарное предприятие "Московское машиностроительное производственное предприятие "Салют" Apparatus for casting in vacuum
CN104646647A (en) * 2015-01-16 2015-05-27 马旭东 Titanium-based alloy induction melting bottom leakage type vacuum suction casting device and control method
CN204584231U (en) * 2015-01-16 2015-08-26 马旭东 Titanium-base alloy induction melting leakage type suction pouring equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017176763A1 *

Also Published As

Publication number Publication date
CN108883463A (en) 2018-11-23
TW201738389A (en) 2017-11-01
EP3439814B1 (en) 2020-12-09
EP3439814A1 (en) 2019-02-13

Similar Documents

Publication Publication Date Title
EP3427018A4 (en) Das for well ranging
EP3322015A4 (en) Battery
EP3292582B8 (en) Reduced volume electrochlorination cells
EP3139792A4 (en) Secure access mirror
EP3392923A4 (en) Battery case
EP3612568B8 (en) Cell
EP3310675B8 (en) Can lid
EP3467091A4 (en) Cell treatment system
EP3266468A4 (en) Eyedrops
EP3132487A4 (en) Electrolyte formulations
EP3165699A4 (en) Hinge
EP3366930A4 (en) Accumulator
EP3162465A4 (en) Casting facility
EP3330410A4 (en) Electrolytic cell
EP3362581A4 (en) Aluminum-iron-zirconium alloys
EP3106534A4 (en) Alloy
EP3249730A4 (en) Redox-flow battery
EP3190250A4 (en) Hinge
EP3305673A4 (en) Double container
EP3170189A4 (en) Multicaloric mnnisi alloys
EP3411918A4 (en) Battery
EP3549590A4 (en) Cell preparation
EP3312434A4 (en) Accumulator
EP3309797A4 (en) Solid electrolyte
EP3273521A4 (en) Stepped battery

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180925

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602017029335

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B22D0018060000

Ipc: B22D0021060000

A4 Supplementary search report drawn up and despatched

Effective date: 20190816

RIC1 Information provided on ipc code assigned before grant

Ipc: B22D 18/06 20060101ALI20190809BHEP

Ipc: B22D 18/08 20060101ALI20190809BHEP

Ipc: B22D 25/02 20060101ALI20190809BHEP

Ipc: B22D 21/06 20060101AFI20190809BHEP

Ipc: B22C 9/22 20060101ALI20190809BHEP

Ipc: A63B 53/04 20150101ALI20190809BHEP

Ipc: B22D 21/00 20060101ALI20190809BHEP

Ipc: B22D 18/04 20060101ALI20190809BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200708

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1342891

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201215

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602017029335

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602017029335

Country of ref document: DE

Representative=s name: HL KEMPNER PATENTANWAELTE, SOLICITORS (ENGLAND, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602017029335

Country of ref document: DE

Representative=s name: HL KEMPNER PATENTANWALT, RECHTSANWALT, SOLICIT, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210310

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210309

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1342891

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210309

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20201209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210409

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602017029335

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210409

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

26N No opposition filed

Effective date: 20210910

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210404

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210430

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210404

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210409

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602017029335

Country of ref document: DE

Owner name: TOPGOLF CALLAWAY BRANDS CORP., CARLSBAD, US

Free format text: FORMER OWNER: CALLAWAY GOLF CO., CARLSBAD, CALIF., US

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602017029335

Country of ref document: DE

Owner name: TOPGOLF CALLAWAY BRANDS CORP., CARLSBAD, US

Free format text: FORMER OWNER: TOPGOLF CALLAWAY BRANDS CORP., CARLSBAD, CA, US

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170404

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240321

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240320

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201209