US3460799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable torque valve actuator
Assignee: ROBERT E SANCTUARY
•
Filing: 1967-08-25
•
Granted: 1969-08-12
•
Expires: 1987-08-25
Abstract
No abstract record available.
Inventors
- 👤 Robert E Sanctuary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:37
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/066; F16; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/163; F16K31/1635; F16K31/42; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/18936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2712242A
Cited
US3056573A
Cited
US2954754A
Cited
US2953344A
Cited
US3104592A
Cited
US3261266A
Cited
US3253518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |