IP Library › Assignment 003941/0532
Patent Assignment
Reel/Frame 003941/0532

Assignment of Assignors Interest.

Recorded: 1981-10-22 Pages: 3
Assignors
BAUGH, JOHN L.
Executed: 1981-09-15
MONTGOMERY, JAMES W.
Executed: 1981-09-10
MANDERSCHEID, PHILLIP H.
Executed: 1981-10-09
Assignee
Covered Property (1)
Annulus Operated Test Valve
Patent: 4,399,870 →
Application: 06/313,901 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Effective Dec. 22, 1981 (Delaware) Apr 5, 1982
From: BROWN OIL TOOLS, INC. A TX CORP.
To: HUGHES TOOL COMPANY A CORP. OF DE
Reel/Frame 003967/0348 →