US2693933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stop valve
Assignee: Individual
•
Filing: 1951-12-17
•
Granted: 1954-11-09
•
Expires: 1971-12-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Meinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:37
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/50; F16K1/00; F16K1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US602696A
Cited
US1409127A
Cited
US1773110A
Cited
US1763927A
Cited
US2307723A
Cited
US2313564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |