Patent US2775907A successfully refreshed from Google Patents.
US2775907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve operator
Assignee: Individual
•
Filing: 1955-11-21
•
Granted: 1957-01-01
•
Expires: 1975-11-21
Abstract
No abstract record available.
Inventors
- 👤 James N Morrell
- 👤 Ince Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:20
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1710441A
Cited
US2114013A
Cited
US2117852A
Cited
US2318010A
Cited
US2286597A
Cited
US2352140A
Cited
US2340999A
Cited
FR897852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |