US2552271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge for hot-bearing or hotbox alarms or indicators
Assignee: Individual
•
Filing: 1946-10-04
•
Granted: 1951-05-08
•
Expires: 1966-10-04
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Faus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:24
CPC Classifications
B; B61; B61K; B61K9/00; B61K9/04; B61F; B61F15/00; B61F15/02; B61F15/06; F; F16; F16C; F16C17/00; F16C17/12; F16C17/24; F16C17/243; F16C2326/00; F16C2326/10; Y; Y10; Y10S; Y10S116/00; Y10S116/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US401531A
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US1151764A
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US1573488A
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US1979875A
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US2026807A
Cited
US2230047A
Cited
US2277533A
Cited
US2280755A
Cited
US2431110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |