Patent US2452348A successfully refreshed from Google Patents.
US2452348A
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Fire extinguishing method
Assignee: Cardox Corp
•
Filing: 1945-06-23
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Granted: 1948-10-26
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Expires: 1965-06-23
Abstract
No abstract record available.
Inventors
- 👤 Walter A Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:29
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/009; Y; Y10; Y10S; Y10S285/00; Y10S285/915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1760359A
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US1831193A
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US2050687A
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US2084719A
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US2090279A
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US2125057A
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US2097908A
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US2202176A
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US2283775A
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US2322758A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |