IP Library › Assignment 031320/0172
Patent Assignment
Reel/Frame 031320/0172

Assignment of Assignor's Interest

Recorded: 2013-10-01 Pages: 4
Assignors
CRAMER, DAVID S.
Executed: 2013-09-06
HARVEY, MICHAEL J.
Executed: 2013-09-30
Assignee
GENERAL DOWNHOLE TECHNOLOGIES LTD.
#12 4807 32 ST, CALGARY, AB, T2B 2S6, CANADA
Covered Property (1)
System, Method And Apparatus For Controlling Fluid Flow Through Drill String
Patent: 9,328,576 →
Application: 13/926,391 →
Publication: US 2014/0020955
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 24, 2017
From: CRAMER, DAVID S.; HARVEY, MICHAEL J.
To: GENERAL DOWNHOLE TECHNOLOGIES LTD.
Reel/Frame 041366/0538 →
Assignment of Assignor's Interest May 9, 2019
From: GENERAL DOWNHOLE TECHNOLOGIES LTD.
To: REVE, LLC
Reel/Frame 049127/0377 →
Assignment of Assignor's Interest May 9, 2019
From: REVE, LLC
To: DYNOMAX DRILLING TOOLS USA, INC.
Reel/Frame 049127/0470 →
Assignment of Assignor's Interest Jun 2, 2021
From: DYNOMAX DRILLING TOOLS USA, INC.
To: DYNOMAX DRILLING TOOLS INC. (CANADA)
Reel/Frame 056416/0131 →