US3473849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure hold-off valve
Assignee: Bendix Corp
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Filing: 1967-03-13
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Granted: 1969-10-21
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Expires: 1987-03-13
Abstract
No abstract record available.
Inventors
- 👤 Donald W Smith
- 👤 Raymond A Reznicek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:33
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/26; F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/066; F16K2200/00; F16K2200/30; F16K2200/302; F16K2200/305; F16K2200/3053; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7841; Y10T137/7842
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |