Patent US2929335A successfully refreshed from Google Patents.
US2929335A
Expired / Lapsed
US
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Liquid valves
Assignee: Individual
•
Filing: 1958-07-30
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Granted: 1960-03-22
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Expires: 1978-07-30
Abstract
No abstract record available.
Inventors
- 👤 Ernst E Seiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:08
CPC Classifications
F; F04; F04B; F04B15/00; F04B15/04; F04B53/00; F04B53/10; F04B53/1077; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4643
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) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |