US2887054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting initiator
Assignee: EIDP Inc
•
Filing: 1956-01-13
•
Granted: 1959-05-19
•
Expires: 1976-01-13
Abstract
No abstract record available.
Inventors
- 👤 Paul J Bryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:14
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/103; F42B3/18; F42B3/182
Claims Analysis
Total Claims: 0
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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) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |