Patent US2837134A successfully refreshed from Google Patents.
US2837134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubeless tire valve stem
Assignee: Bridgeport Brass Co
•
Filing: 1953-10-28
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Granted: 1958-06-03
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Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 Donald E Steer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:49
CPC Classifications
B; B60; B60C; B60C29/00; B60C29/02; Y; Y10; Y10S; Y10S152/00; Y10S152/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE82719C
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US756246A
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US966023A
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US1191888A
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US1788612A
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US1864001A
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US2125372A
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US2400930A
Cited
US2587470A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |