US2667934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry pipe valve
Assignee: GLOBE AUTOMATIC SPRINKLER CO
•
Filing: 1951-12-28
•
Granted: 1954-02-02
•
Expires: 1971-12-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Rowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:30
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/20; F16K1/2007; F16K1/2028; F16K1/2042; F16K1/205; F16K1/2057
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1763834A
Cited
US1866766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |