US2549533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric match and explosion initiator containing the same
Assignee: Atlas Powder Co
•
Filing: 1945-06-27
•
Granted: 1951-04-17
•
Expires: 1965-06-27
Abstract
No abstract record available.
Inventors
- 👤 Boyd J Sevold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:32
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1407157A
Cited
US1590364A
Cited
DE545750C
Cited
US2086527A
Cited
US2086532A
Cited
US2185370A
Cited
GB555969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |