US2943706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick acting valve operating mechanism
Assignee: Specialties Development Corp
•
Filing: 1956-02-10
•
Granted: 1960-07-05
•
Expires: 1976-02-10
Abstract
No abstract record available.
Inventors
- 👤 Carrel B Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:48
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/28; F; F16; F16K; F16K31/00; F16K31/003; F16K31/02; F16K31/04; F16K31/047
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1137401A
Cited
US1217843A
Cited
US1891101A
Cited
US2338305A
Cited
US2591216A
Cited
US2738033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |