US2772633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric blasting cap
Assignee: Olin Corp
•
Filing: 1953-02-25
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Granted: 1956-12-04
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Expires: 1973-02-25
Abstract
No abstract record available.
Inventors
- 👤 Aldo J Barocca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/12; F42B3/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
IN AN ELECTRIC BLASTING CAP HAVING AN ELECTRIC HEATING ELEMENT AND AN IGNITION COMPOSITION IN CONTACT WITH SAID ELEMENT, SAID COMPOSITION COMPRISING A SUBSTANTIAL AMOUNT OF LEAD TRINITRORESORCINATE INTIMATELY MIXED WITH A SUBSTANTIAL AMOUNT OF CYCLOTRIMETHYLENETRINITRAMINE.
Claim 2
Dependent Claim
36 words
IN AN ELECTRIC BLASTING CAP HAVING AN ELECTRIC HEATING ELEMENT AND AN IGNITION COMPOSITION IN CONTACT WITH SAID ELEMENT, SAID COMPOSITION COMPRISING A SUBSTANTIAL AMOUNT OF LEAD TRINITRORESORCINATE INTIMATELY MIXED WITH A SUBSTANTIAL AMOUNT OF CYCLOTRIMETHYLENETRINITRAMINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |