IP Library › Granted Patent US 4,257,553
Granted Patent Utility
US 4,257,553 · App. 05/890,606

Valve construction and method of making the same

Inventors: Boyd P. Sliger, Everett T. Steele, Jr.
Patented Case View Patent ↗
Granted: Mar 24, 1981 Filed: Mar 20, 1978
Inventors
Boyd P. Sliger
Everett T. Steele, Jr.
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED

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Quick Facts
Patent No.
US 4,257,553
App. No.
05/890,606
Filed
1978-03-20
Granted
1981-03-24
Kind
A