Patent US2667225A successfully refreshed from Google Patents.
US2667225A
Expired / Lapsed
US
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Powder fire extinguisher
Assignee: CO Two Fire Equipment Co
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Filing: 1949-11-21
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Granted: 1954-01-26
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Expires: 1969-11-21
Abstract
No abstract record available.
Inventors
- 👤 Frank B Allen
- 👤 Norman H Siebens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:48
CPC Classifications
A; A62; A62C; A62C13/00; A62C13/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US940614A
Cited
US1634976A
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US1866981A
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US1918191A
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US1976056A
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US2181488A
Cited
US2371959A
Cited
US2558409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |