US2853099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve operating mechanism for controlling the flow of fluid
Assignee: Individual
•
Filing: 1951-12-17
•
Granted: 1958-09-23
•
Expires: 1971-12-17
Abstract
No abstract record available.
Inventors
- 👤 John E Eitel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:57
CPC Classifications
A; A62; A62C; A62C31/00; A62C31/28; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7898; Y10T137/79; Y10T137/8593; Y10T137/87153; Y10T137/87161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US434386A
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US46800A
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US1768764A
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US803338A
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US948648A
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US1270722A
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US2071095A
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US2152651A
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US2227767A
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US2313177A
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US2404262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |