US2942620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve actuator
Assignee: Individual
•
Filing: 1958-03-07
•
Granted: 1960-06-28
•
Expires: 1978-03-07
Abstract
No abstract record available.
Inventors
- 👤 Paul A Medearis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:57
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/56; E; E21; E21B; E21B21/00; E21B21/10; E21B21/106; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86348
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |