US2910050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston type multiport fluid pressure valve
Assignee: Homestead Valve Manufacturing Co
•
Filing: 1955-06-13
•
Granted: 1959-10-27
•
Expires: 1975-06-13
Abstract
No abstract record available.
Inventors
- 👤 John H Dotter
- 👤 William L Hulslander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:11
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; F16K11/0712; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/8663; Y10T137/8667; Y10T137/86694; Y10T137/86702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189411955A
Cited
GB190726345A
Cited
US1342734A
Cited
US2157240A
Cited
US2132030A
Cited
US2382562A
Cited
US2316944A
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US2388832A
Cited
US2645450A
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US2722946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |