US3452771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature insensitive fluid oscillator
Assignee: United States Department of the Army
•
Filing: 1966-09-26
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Granted: 1969-07-01
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Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Kirshner
- 👤 Carl J Campagnuolo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:48
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/22; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2229; Y10T137/2234
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3185166A
Cited
FR1278781A
Cited
US3159168A
Cited
US3158166A
Cited
US3223101A
Cited
US3228410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |