US3224234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-tight seal
Assignee: Nationale SA
•
Filing: 1963-07-16
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Granted: 1965-12-21
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Zellweger Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:50
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/34; F23Q2/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN A GAS BURNING CIGAR LIGHTER, A FUEL RESERVOIR OF A PLASTIC MATERIAL SUBJECT TO PERMANENT DEFORMATION WHEN STRESSED BEYOND ITS ELASTIC LIMIT AND A METALLIC BURNER VALVE ASSEMBLY EXTENDING THROUGH ONE WALL OF SAID FUEL RESERVOIR, SAID METALLIC VALVE ASSEMBLY HAVING A PREFORMED PERIPHERAL RIDGE THEREABOUT PRESSED RADIALLY INTO THE PLASTIC MATERIAL OF SAID FUEL RESERVOIR BY AN AMOUNT SUFFICIENT TO ESTABLISH LOCAL STRESSES IN SAID PLASTIC MATERIAL IN THE IMMEDIATE VICINITY OF SAID RIDGE TO STRESS SAID PLASTIC MATERIAL BEYOND ITS ELASTIC LIMIT BUT NOT BEYOND ITS ULTIMATE STRENGTH.
Claim 2
Dependent Claim
91 words
IN A GAS BURNING CIGAR LIGHTER, A FUEL RESERVOIR OF A PLASTIC MATERIAL SUBJECT TO PERMANENT DEFORMATION WHEN STRESSED BEYOND ITS ELASTIC LIMIT AND A METALLIC BURNER VALVE ASSEMBLY EXTENDING THROUGH ONE WALL OF SAID FUEL RESERVOIR, SAID METALLIC VALVE ASSEMBLY HAVING A PREFORMED PERIPHERAL RIDGE THEREABOUT PRESSED RADIALLY INTO THE PLASTIC MATERIAL OF SAID FUEL RESERVOIR BY AN AMOUNT SUFFICIENT TO ESTABLISH LOCAL STRESSES IN SAID PLASTIC MATERIAL IN THE IMMEDIATE VICINITY OF SAID RIDGE TO STRESS SAID PLASTIC MATERIAL BEYOND ITS ELASTIC LIMIT BUT NOT BEYOND ITS ULTIMATE STRENGTH.
References Cited (Backward Citations)
NL73272C
Cited
US309247A
Cited
US2340466A
Cited
US2535452A
Cited
US2608081A
Cited
US3093990A
Cited
US2953398A
Cited
US3085412A
Cited
FR1282426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |