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US3261266A
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Valve actuator
Assignee: LEDEEN FLOW CONTROL SYSTEMS Inc
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Filing: 1963-12-31
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Granted: 1966-07-19
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Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 Ledeen Hyman
- 👤 Howard L Ledeen
- 👤 Alexander A Toben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:54
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/066; F16; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/163; F16K31/1635; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/18928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US45756A
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US934147A
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US1854531A
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US1923681A
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US2715389A
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US2737157A
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US3056573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |