US2762302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric detonator
Assignee: Individual
•
Filing: 1951-11-16
•
Granted: 1956-09-11
•
Expires: 1971-11-16
Abstract
No abstract record available.
Inventors
- 👤 Norman A Macleod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:28
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/195; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US148338A
Cited
FR527290A
Cited
US1542825A
Cited
US1926842A
Cited
US2437153A
Cited
FR969709A
Cited
US2619443A
Cited
US2654060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |