DE29500039U1 - Railroad tie made of concrete - Google Patents

Railroad tie made of concrete

Info

Publication number
DE29500039U1
DE29500039U1 DE29500039U DE29500039U DE29500039U1 DE 29500039 U1 DE29500039 U1 DE 29500039U1 DE 29500039 U DE29500039 U DE 29500039U DE 29500039 U DE29500039 U DE 29500039U DE 29500039 U1 DE29500039 U1 DE 29500039U1
Authority
DE
Germany
Prior art keywords
concrete
railroad tie
tie made
railroad
tie
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.)
Expired - Lifetime
Application number
DE29500039U
Other languages
German (de)
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.)
DW SCHWELLEN GMBH, DE
Original Assignee
Dyckerhoff and Widmann AG
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 Dyckerhoff and Widmann AG filed Critical Dyckerhoff and Widmann AG
Priority to DE29500039U priority Critical patent/DE29500039U1/en
Publication of DE29500039U1 publication Critical patent/DE29500039U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
    • E01B3/34—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement with pre-tensioned armouring or reinforcement
DE29500039U 1995-01-03 1995-01-03 Railroad tie made of concrete Expired - Lifetime DE29500039U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29500039U DE29500039U1 (en) 1995-01-03 1995-01-03 Railroad tie made of concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29500039U DE29500039U1 (en) 1995-01-03 1995-01-03 Railroad tie made of concrete

Publications (1)

Publication Number Publication Date
DE29500039U1 true DE29500039U1 (en) 1995-02-16

Family

ID=8002136

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29500039U Expired - Lifetime DE29500039U1 (en) 1995-01-03 1995-01-03 Railroad tie made of concrete

Country Status (1)

Country Link
DE (1) DE29500039U1 (en)

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19950330

R150 Term of protection extended to 6 years

Effective date: 19980219

R021 Search request validly filed

Effective date: 19990728

R163 Identified publications notified

Effective date: 19991012

R151 Term of protection extended to 8 years

Effective date: 20010316

R081 Change of applicant/patentee

Owner name: DW SCHWELLEN GMBH, DE

Free format text: FORMER OWNER: DYCKERHOFF & WIDMANN AG, 81829 MUENCHEN, DE

Effective date: 20021016

Owner name: DW SCHWELLEN GMBH, DE

Free format text: FORMER OWNER: WALTER BAU-AG, 86153 AUGSBURG, DE

Effective date: 20021210

R158 Lapse of ip right after 8 years

Effective date: 20030801