Granted Patent
Utility
US 4,735,548 · App. 07/039,862
Carrier system for clean room
Inventors:
Kazuo Kimata, Susumu Ishikawa
Patented Case
View Patent ↗
Granted: Apr 5, 1988
Filed: Apr 20, 1987
Inventors
Kazuo Kimata
Susumu Ishikawa
Assignee (at issue)
MECS, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.