US2622528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive cartridge
Assignee: Hercules Powder Co
•
Filing: 1945-04-07
•
Granted: 1952-12-23
•
Expires: 1965-04-07
Abstract
No abstract record available.
Inventors
- 👤 Robert W Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:13
CPC Classifications
F; F42; F42B; F42B3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN EXPLOSIVE CARTRIDGE OF ENHANCED DETONATION VELOCITY COMPRISING A CHARGE OF DETONATIVE HIGH EXPLOSIVE HAVING A DETONATION VELOCITY OF AT LEAST 5000 METERS PER SECOND AND HAVING SPACED LONGITUDINALLY THEREOF A PLURALITY OF SPACED, CONCENTRIC, LONGITUDINALLY EXTENDING CAVITIES TO FORM ALTERNATE SOLID AND ANNULAR SECTIONS, EACH SAID CAVITY BEING RADIALLY SURROUNDED AND LONGITUDINALLY SEPARATED BY SAID DETONATIVE DIAMETER EXPLOSOVE, AND EACH CAVITY HAVING A DIAMETER OF ABOUT 25% OF THE DIAMETER OF THE CARTRIDGE.
Claim 2
Dependent Claim
74 words
AN EXPLOSIVE CARTRIDGE OF ENHANCED DETONATION VELOCITY COMPRISING A CHARGE OF DETONATIVE HIGH EXPLOSIVE HAVING A DETONATION VELOCITY OF AT LEAST 5000 METERS PER SECOND AND HAVING SPACED LONGITUDINALLY THEREOF A PLURALITY OF SPACED, CONCENTRIC, LONGITUDINALLY EXTENDING CAVITIES TO FORM ALTERNATE SOLID AND ANNULAR SECTIONS, EACH SAID CAVITY BEING RADIALLY SURROUNDED AND LONGITUDINALLY SEPARATED BY SAID DETONATIVE DIAMETER EXPLOSOVE, AND EACH CAVITY HAVING A DIAMETER OF ABOUT 25% OF THE DIAMETER OF THE CARTRIDGE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |