US2608235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve structure for pneumatic tires having dual tubes
Assignee: Individual
•
Filing: 1950-01-03
•
Granted: 1952-08-26
•
Expires: 1970-01-03
Abstract
No abstract record available.
Inventors
- 👤 Edwin T Wyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:27
CPC Classifications
B; B60; B60C; B60C17/00; B60C17/01; B60C29/00; B60C29/007; Y; Y10; Y10S; Y10S152/00; Y10S152/09; Y10T; Y10T137/00; Y10T137/3584; Y10T137/8593; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10522; Y10T152/10576; Y10T152/10594
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US804613A
Cited
US1541125A
Cited
US1650502A
Cited
US1653054A
Cited
US1626511A
Cited
US2189485A
Cited
US2272548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |