US2420201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting cap
Assignee: Olin Industries Inc
•
Filing: 1942-03-07
•
Granted: 1947-05-06
•
Expires: 1962-03-07
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Seavey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:58
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/195
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE310048C
Cited
US356064A
Cited
US392922A
Cited
US905336A
Cited
US1010430A
Cited
GB191517443A
Cited
DE447458C
Cited
US1516009A
Cited
US1713838A
Cited
US1785529A
Cited
US1950019A
Cited
US2275569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-05 | 1950-11-04 | 1951-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-05 | 1954-11-04 | 1955-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-05 | 1958-11-04 | 1959-05-06 | $7700.00 | Window Closed / Lapsed |