US2767655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting caps
Assignee: Olin Corp
•
Filing: 1953-06-15
•
Granted: 1956-10-23
•
Expires: 1973-06-15
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Seavey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:12
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/12; F42B3/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
AN ELECTRIC BLASTING CAP HAVING A CASE, CLOSURE PLUG AND LEAD WIRE INSULATION SHEATHS OF ORGANIC PLASTIC MATERIAL
Claim 2
Dependent Claim
18 words
AN ELECTRIC BLASTING CAP HAVING A CASE, CLOSURE PLUG AND LEAD WIRE INSULATION SHEATHS OF ORGANIC PLASTIC MATERIAL
References Cited (Backward Citations)
US2415045A
Cited
US2382921A
Cited
US2399034A
Cited
US2356337A
Cited
US2477458A
Cited
GB647145A
Cited
US2647101A
Cited
US2636866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |