Patent US2715908A successfully refreshed from Google Patents.
US2715908A
Expired / Lapsed
US
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Fire extinguisher discharge valve
Assignee: HUTHSING
•
Filing: 1950-08-19
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Granted: 1955-08-23
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Expires: 1970-08-19
Abstract
No abstract record available.
Inventors
- 👤 Charles K Huthsing
- 👤 John W Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:16
CPC Classifications
A; A62; A62C; A62C13/00; A62C13/003; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1714
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1506145A
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US1910283A
Cited
US1950122A
Cited
US1966562A
Cited
US2144427A
Cited
US2500214A
Cited
US2506074A
Cited
US2454621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |