Patent US3085509A successfully refreshed from Google Patents.
US3085509A
Expired / Lapsed
US
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Practice grenade
Assignee: Anstalt Fuer die Entwicklung von Erfindungen und Gewerblichen Anwendungen ENERGA
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Filing: 1960-12-29
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Granted: 1963-04-16
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Denoix Paul Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:00
CPC Classifications
F; F42; F42B; F42B30/00; F42B30/04; F42B10/00; F42B10/02; F42B10/04; F42B10/06; F42B8/00; F42B8/12; F42B8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PRACTICE GRENADE TO BE FITTED ON THE BARREL OF A RIFLE FOR USE WITH A BLANK CARTRIDGE IN INSTRUCTION AND TRAINING, COMPRISING A RECOVERABLE DUMMY GRENADE, HAVING A FORWARD BODY AND A TAIL TO BE FITTED LOOSELY ON SAID RIFLE BARREL, AN AXIAL TUBE IN SAID BODY, AN ANNULAR BEARING LEDGE IN SAID AXIAL TUBE, AN EXPANSION CHAMBER BETWEEN SAID BODY AND SAID TAIL, A SERIES OF ORIFICES THROUGH THE WALL OF SAID EXPANSION CHAMBER, SAID EXPANSION CHAMBER HAVING A WALL DEFINING A HOLLOW INTERIOR IN COMMUNICATION WITH BODY SAID AXIAL TUBE AND SAID TAIL, A
Claim 2
Dependent Claim
97 words
A PRACTICE GRENADE TO BE FITTED ON THE BARREL OF A RIFLE FOR USE WITH A BLANK CARTRIDGE IN INSTRUCTION AND TRAINING, COMPRISING A RECOVERABLE DUMMY GRENADE, HAVING A FORWARD BODY AND A TAIL TO BE FITTED LOOSELY ON SAID RIFLE BARREL, AN AXIAL TUBE IN SAID BODY, AN ANNULAR BEARING LEDGE IN SAID AXIAL TUBE, AN EXPANSION CHAMBER BETWEEN SAID BODY AND SAID TAIL, A SERIES OF ORIFICES THROUGH THE WALL OF SAID EXPANSION CHAMBER, SAID EXPANSION CHAMBER HAVING A WALL DEFINING A HOLLOW INTERIOR IN COMMUNICATION WITH BODY SAID AXIAL TUBE AND SAID TAIL, A
References Cited (Backward Citations)
GB100700A
Cited
US2786415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |