IP Library › Assignment 003794/0619
Patent Assignment
Reel/Frame 003794/0619

Assignment of Assignors Interest.

Recorded: 1980-08-11 Pages: 1
Assignor
GALLE EDWARD M.
Executed: 1980-08-06
Assignee
Covered Property (1)
Sealed and Lubricated Rock Bit with Air Protected Seal Ring
Patent: 4,375,242 →
Application: 06/177,292 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. May 15, 1984
From: HUGHES TOOL COMPANY
To: HUGHES TOOL COMPANY - USA A CORP OF
Reel/Frame 004269/0060 →
Change of Name Effective October 11, 1988 (Delaware) Nov 2, 1988
From: HUGHES TOOL COMPANY-USA, A CORP. OF DE
To: HUGHES TOOL COMPANY
Reel/Frame 005169/0319 →