US3465732A
Expired / Lapsed
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Piezoelectric control valve
Assignee: Physics International Co
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Filing: 1967-10-19
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Granted: 1969-09-09
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Expires: 1987-10-19
Abstract
No abstract record available.
Inventors
- 👤 Nicholas Kattchee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:29
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/004; F16K31/007; F02; F02M; F02M51/00; F02M51/02; F02M59/00; F02M59/44; F02M59/46; F02M59/466; F02M59/468; F02M69/00; F02M69/14; F02M69/145; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761; Y10T137/8593; Y10T137/87169; Y10T137/87193; Y10T137/87209
Claims Analysis
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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) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |