US2525802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing system and method
Assignee: Specialties Development Corp
•
Filing: 1944-03-01
•
Granted: 1950-10-17
•
Expires: 1964-03-01
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Joerren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:50
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/0009; A62C99/0018; A62C99/0027; F; F17; F17C; F17C7/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/313
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2143311A
Cited
US1006528A
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US866109A
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US851274A
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US1264390A
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US1241664A
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US1297310A
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US1501956A
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US1971106A
Cited
US1930731A
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US2180231A
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US2274784A
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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) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |