US2982209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demolition firing device
Assignee: Individual
•
Filing: 1947-06-27
•
Granted: 1961-05-02
•
Expires: 1967-06-27
Abstract
No abstract record available.
Inventors
- 👤 Charles A Borcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:56
CPC Classifications
F; F42; F42C; F42C9/00; F42C9/02; F42C9/04; F42B; F42B3/00; F42C9/041; F42C9/045; F42D; F42D3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US44630A
Cited
US898848A
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US1558260A
Cited
US1572436A
Cited
US2076613A
Cited
US2397066A
Cited
US2485949A
Cited
US2514499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |