US2831431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Point detonating delay action fuse
Assignee: Individual
•
Filing: 1949-12-01
•
Granted: 1958-04-22
•
Expires: 1969-12-01
Abstract
No abstract record available.
Inventors
- 👤 William F Stevenson
- 👤 Jr Joseph J Mancusi
- 👤 Edelson Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:59
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/32; F42C15/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1309771A
Cited
US1318954A
Cited
GB257335A
Cited
FR694402A
Cited
US1850196A
Cited
US1933608A
Cited
US2368747A
Cited
US2487056A
Cited
US2434551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |