US2998025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination valve
Assignee: —
•
Filing: —
•
Granted: 1961-08-29
•
Expires: 1978-08-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:40
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/16; B60T13/18; B60T7/00; B60T7/02; B60T7/04; F; F16; F16K; F16K31/00; F16K31/44; F16K31/62; G; G05; G05D; G05D16/00; G05D16/024; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/8671; Y10T137/87056; Y10T137/8708
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US526930A
Cited
US1765069A
Cited
US1943061A
Cited
US2643674A
Cited
US2705971A
Cited
US2798461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |