US2725823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric blasting caps
Assignee: Olin Corp
•
Filing: 1951-09-27
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Granted: 1955-12-06
•
Expires: 1971-09-27
Abstract
No abstract record available.
Inventors
- 👤 Jr John J Henschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:52
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/195; F42B3/18; F42B3/182; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174; Y10T29/49176; Y10T29/49178; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB113469A
Cited
US1354905A
Cited
GB199523A
Cited
GB336423A
Cited
US1977643A
Cited
US1835753A
Cited
US1937538A
Cited
US2649735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |