IP Library › Granted Patent US 4,869,290
Granted Patent Utility
US 4,869,290 · App. 07/233,243

Expansion device for a refrigeration system, piston therefor and methods of making the same

Inventors: Roger P. Sepso, John M. Halmose
Patented Case View Patent ↗
Granted: Sep 26, 1989 Filed: Aug 17, 1988
Inventors
Roger P. Sepso
John M. Halmose
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED

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Quick Facts
Patent No.
US 4,869,290
App. No.
07/233,243
Filed
1988-08-17
Granted
1989-09-26
Kind
A