Patent EP0318858A2 successfully refreshed from Google Patents.
US3326084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light gas cartridge
Assignee: North American Aviation Corp
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Filing: 1965-04-23
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Granted: 1967-06-20
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Expires: 1985-04-23
Abstract
No abstract record available.
Inventors
- 👤 Louis J Barbieri
- 👤 Lampert Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:01
CPC Classifications
F; F41; F41F; F41F1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A SELF-CONTAINED LIGHT GAS CARTRIDGE CAPABLE OF INDEFINITE STORAGE FOR USE IN A LIGHT GAS GUN COMPRISING: A HOLLOW HOUSING HAVING A CYLINDRICAL INTERIOR PORTION AND A SLIGHTLY CONICAL EXTERIOR PORTION; A PROJECTILE ASSEMBLY IN GAS SEALING RELATION TO THE FORWARD END OF SAID HOUSING, SAID ASSEMBLY INCLUDING A FRANGIBLE REGION FOR RUPTURE AT A PREDETERMINED HIGH PRESSURE IN SAID HOUSING; A PISTON IN GAS SEALING RELATION IN SAID HOLLOW HOUSING AND COOPERATING THEREWITH TO DEFINE A FORWARD CHAMBER AND AN AFT CHAMBER THEREIN; A CHARGE OF COMPRESSED LIGHT GAS IN THE FORWARD CHAMBER; A CHARGE OF EXPLOSIVE IN THE AFT CHAMBER; MEANS FOR IGNITING SAID EXPLOSIVE; AND MEANS FOR INTRODUCING THE CHARGE OF LIGHT GAS IN THE FORWARD CHAMBER COMPRISING A FILLING CONDUIT ON THE AXIS OF SAID CARTRIDGE COMMUNICATING WITH THE FORWARD CHAMBER.
Claim 2
Dependent Claim
135 words
A SELF-CONTAINED LIGHT GAS CARTRIDGE CAPABLE OF INDEFINITE STORAGE FOR USE IN A LIGHT GAS GUN COMPRISING: A HOLLOW HOUSING HAVING A CYLINDRICAL INTERIOR PORTION AND A SLIGHTLY CONICAL EXTERIOR PORTION; A PROJECTILE ASSEMBLY IN GAS SEALING RELATION TO THE FORWARD END OF SAID HOUSING, SAID ASSEMBLY INCLUDING A FRANGIBLE REGION FOR RUPTURE AT A PREDETERMINED HIGH PRESSURE IN SAID HOUSING; A PISTON IN GAS SEALING RELATION IN SAID HOLLOW HOUSING AND COOPERATING THEREWITH TO DEFINE A FORWARD CHAMBER AND AN AFT CHAMBER THEREIN; A CHARGE OF COMPRESSED LIGHT GAS IN THE FORWARD CHAMBER; A CHARGE OF EXPLOSIVE IN THE AFT CHAMBER; MEANS FOR IGNITING SAID EXPLOSIVE; AND MEANS FOR INTRODUCING THE CHARGE OF LIGHT GAS IN THE FORWARD CHAMBER COMPRISING A FILLING CONDUIT ON THE AXIS OF SAID CARTRIDGE COMMUNICATING WITH THE FORWARD CHAMBER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |