US2963970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric detonator
Assignee: WASAG CHEMIE A G FA
•
Filing: 1956-09-11
•
Granted: 1960-12-13
•
Expires: 1976-09-11
Abstract
No abstract record available.
Inventors
- 👤 Schaadt Franz
- 👤 Hegelmayer Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:44
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/12; F42B3/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1425476A
Cited
US2086548A
Cited
US2342842A
Cited
US2261436A
Cited
US2764091A
Cited
US2818020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |