US3286873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel tank cap
Assignee: Walbro Corp
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Filing: 1964-06-01
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Granted: 1966-11-22
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Charles H Tuckey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:53
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/0406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A VENT CAP FOR CLOSING A VENT OPENING OF A CONTAINER FOR LIQUIDS COMPRISING: (A) A BODY HAVING A PORTION FOR CO-OPERATION WITH A GRAVITY FILL OPENING IN THE TOP OF A CONTAINER WHEREIN THE HEAD SPACE OF THE CONTAINER IS EXPOSED TO THE INTERIOR OF THE CAP IN A LIQUID TIGHT CONNECTION, (B) A PORTION DEFINING AN AXIALLY EXTENDING AIR CHAMBER IN THE BODY, HAVING FORMED THEREON SPACED HOLLOW PROJECTIONS ONE OF WHICH IS OPEN TO THE ATMOSPHERE THROUGH THE TOP WALL OF SAID CAP, AND A SEPARABLE INSERT IN SAID CAP HAVING A BASE ANNULARLY SEALED INTERIORLY AGAINST THE WALLS OF SAID CAP AND HAVING UPWARDLY PROJECTING HOLLOW PORTIONS TELESCOPINGLY RELAT-
Claim 2
Dependent Claim
113 words
A VENT CAP FOR CLOSING A VENT OPENING OF A CONTAINER FOR LIQUIDS COMPRISING: (A) A BODY HAVING A PORTION FOR CO-OPERATION WITH A GRAVITY FILL OPENING IN THE TOP OF A CONTAINER WHEREIN THE HEAD SPACE OF THE CONTAINER IS EXPOSED TO THE INTERIOR OF THE CAP IN A LIQUID TIGHT CONNECTION, (B) A PORTION DEFINING AN AXIALLY EXTENDING AIR CHAMBER IN THE BODY, HAVING FORMED THEREON SPACED HOLLOW PROJECTIONS ONE OF WHICH IS OPEN TO THE ATMOSPHERE THROUGH THE TOP WALL OF SAID CAP, AND A SEPARABLE INSERT IN SAID CAP HAVING A BASE ANNULARLY SEALED INTERIORLY AGAINST THE WALLS OF SAID CAP AND HAVING UPWARDLY PROJECTING HOLLOW PORTIONS TELESCOPINGLY RELAT-
References Cited (Backward Citations)
US3140794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |