Patent US3486522A successfully refreshed from Google Patents.
US3486522A
Expired / Lapsed
US
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Tire valve core
Assignee: Schrader Automotive Inc
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Filing: 1967-12-11
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Granted: 1969-12-30
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Expires: 1987-12-11
Abstract
No abstract record available.
Inventors
- 👤 Robert B Ashman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:30
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/20; Y; Y10; Y10T; Y10T137/00; Y10T137/3584; Y10T137/3786; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7931; Y10T137/7932; Y10T137/7933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2142044A
Cited
US3083723A
Cited
US3247882A
Cited
US3396743A
Cited
US3368603A
Cited
US3414232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |