AU658809B3 - Retractable drill bit system - Google Patents

Retractable drill bit system

Info

Publication number
AU658809B3
AU658809B3 AU63094/94A AU6309494A AU658809B3 AU 658809 B3 AU658809 B3 AU 658809B3 AU 63094/94 A AU63094/94 A AU 63094/94A AU 6309494 A AU6309494 A AU 6309494A AU 658809 B3 AU658809 B3 AU 658809B3
Authority
AU
Australia
Prior art keywords
drill bit
bit system
retractable drill
retractable
drill
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.)
Ceased
Application number
AU63094/94A
Inventor
Matthew Vance Egan
Gavin Thomas Mcleod
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.)
Downhole Technologies Pty Ltd
Original Assignee
Downhole Technologies Pty Ltd
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
Priority claimed from AUPM4159A external-priority patent/AUPM415994A0/en
Priority claimed from AUPM4158A external-priority patent/AUPM415894A0/en
Application filed by Downhole Technologies Pty Ltd filed Critical Downhole Technologies Pty Ltd
Priority to AU63094/94A priority Critical patent/AU658809B3/en
Assigned to DOWN HOLE TECHNOLOGIES PTY LTD reassignment DOWN HOLE TECHNOLOGIES PTY LTD Alteration of Name(s) of Applicant(s) under S113 Assignors: EGAN, MATTHEW VANCE, Gavin Thomas Nominees Pty Ltd
Application granted granted Critical
Publication of AU658809B3 publication Critical patent/AU658809B3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

AU63094/94A 1993-06-16 1994-05-11 Retractable drill bit system Ceased AU658809B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63094/94A AU658809B3 (en) 1993-06-16 1994-05-11 Retractable drill bit system

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
AUPL940793 1993-06-16
AUPL9407 1993-06-16
AUPM4159 1994-03-02
AUPM4159A AUPM415994A0 (en) 1994-03-02 1994-03-02 Retractable drill bit
AUPM4158A AUPM415894A0 (en) 1994-03-02 1994-03-02 Retractable drill bit segments
AUPM4158 1994-03-02
AU63094/94A AU658809B3 (en) 1993-06-16 1994-05-11 Retractable drill bit system

Publications (1)

Publication Number Publication Date
AU658809B3 true AU658809B3 (en) 1995-04-27

Family

ID=27423624

Family Applications (1)

Application Number Title Priority Date Filing Date
AU63094/94A Ceased AU658809B3 (en) 1993-06-16 1994-05-11 Retractable drill bit system

Country Status (1)

Country Link
AU (1) AU658809B3 (en)

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired