US3323455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible explosive cartridge
Assignee: Trojan Powder Co
•
Filing: 1965-09-30
•
Granted: 1967-06-06
•
Expires: 1985-09-30
Abstract
No abstract record available.
Inventors
- 👤 George L Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:28
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN THE PROCESS FOR FORMING AN EXPLOSIVE CARTRIDGE COMPRISING FORMING A CONTAINER FROM SHEET MATERIAL, FILLING THE CONTAINER WITH EXPLOSIVE, AND CLOSING THE CONTAINER, THE IMPROVEMENT WHICH COMPRISES APPLYING A CORROSIVE SUBSTANCE TO PREDETERMINED LIMITED PORTIONS OF THE SURFACE OF THE CONTAINER MATERIAL, TO CHEMICALLY WEAKEN THE MATERIAL IN SUCH PORTIONS, FORMING AREAS OF STRUCTURAL WEAKNESS THEREIN.
Claim 2
Dependent Claim
57 words
IN THE PROCESS FOR FORMING AN EXPLOSIVE CARTRIDGE COMPRISING FORMING A CONTAINER FROM SHEET MATERIAL, FILLING THE CONTAINER WITH EXPLOSIVE, AND CLOSING THE CONTAINER, THE IMPROVEMENT WHICH COMPRISES APPLYING A CORROSIVE SUBSTANCE TO PREDETERMINED LIMITED PORTIONS OF THE SURFACE OF THE CONTAINER MATERIAL, TO CHEMICALLY WEAKEN THE MATERIAL IN SUCH PORTIONS, FORMING AREAS OF STRUCTURAL WEAKNESS THEREIN.
References Cited (Backward Citations)
US2345654A
Cited
US2312744A
Cited
US2378223A
Cited
US2887954A
Cited
US2997954A
Cited
US3087425A
Cited
US3265546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |