US3423939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Master cylinder vent valve
Assignee: Bendix Corp
•
Filing: 1967-06-06
•
Granted: 1969-01-28
•
Expires: 1987-06-06
Abstract
No abstract record available.
Inventors
- 👤 Richard L Lewis
- 👤 William E Ferrell
- 👤 Paul B Shutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/22; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2177224A
Cited
US2571893A
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US2952128A
Cited
US2933102A
Cited
US3059671A
Cited
US3206932A
Cited
US3233411A
Cited
US3206933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |