US2856850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaped charge
Assignee: Individual
•
Filing: 1954-03-22
•
Granted: 1958-10-21
•
Expires: 1974-03-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Church
- 👤 Gregory J Kessenich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:24
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/08; F42B1/00; F42B1/02; F42C; F42C19/00; F42C19/08; F42C19/09; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |