Patent US2661804A successfully refreshed from Google Patents.
US2661804A
Expired / Lapsed
US
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Fire extinguisher discharge head
Assignee: CO Two Fire Equipment Co
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Filing: 1951-12-26
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Granted: 1953-12-08
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Expires: 1971-12-26
Abstract
No abstract record available.
Inventors
- 👤 Walter M Haessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:37
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/04; F16K13/06; A; A62; A62C; A62C3/00; A62C3/07; A62C3/08; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647; Y10T137/1692; Y10T137/1759; Y10T137/1767
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2284650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |