Patent Assignment
Reel/Frame 004877/0552
Assignment of Assignors Interest.
Recorded: 1988-01-28
Pages: 1
Assignor
JOHNSTON, JOSEPH G.
Executed: 1988-01-27
Assignee
Covered Property
(1)
Range Selector Switch for Ion Chamber Instrument
Patent:
4,977,367 →
Application:
07/149,654 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Dec 4, 2002
From: SAINT-GOBAIN INDUSTRIAL CERAMICS, INC.
To: SAINT-GOBAIN CERAMICS & PLASTICS INC.
Reel/Frame 013563/0654 →
Change of Name
Dec 11, 2002
From: SAINT-GOBAIN/NORTON INDUSTRIAL CERAMICS CORPORATION
To: SAINT-GOBAIN INDUSTRIAL CERAMICS INC.
Reel/Frame 013563/0500 →
Merger
Dec 11, 2002
From: BICRON CORPORATION
To: SAINT GOBAIN/NORTON INDUSTRIAL CERAMICS CORPORATION
Reel/Frame 013563/0634 →