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US2647293A
Expired / Lapsed
US
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Fire safety appliance for application to the outside of windows
Assignee: Individual
•
Filing: 1947-10-06
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Granted: 1953-08-04
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Expires: 1967-10-06
Abstract
No abstract record available.
Inventors
- 👤 Andrew F Wintercorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:46
CPC Classifications
A; A62; A62B; A62B35/00; A62B35/0006; A62B35/0018; A62B35/0025; A62B35/0037; A62B35/0043; A62B35/0068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US240167A
Cited
US293799A
Cited
US612166A
Cited
GB190203322A
Cited
GB190910214A
Cited
US1366920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |