US3413993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid device
Assignee: Electro Optical Systems Inc
•
Filing: 1965-06-07
•
Granted: 1968-12-03
•
Expires: 1985-06-07
Abstract
No abstract record available.
Inventors
- 👤 Richard W Ziemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:29
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02; F15C1/04; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2082; Y10T137/218; Y10T137/2191; Y10T137/2273
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2763125A
Cited
US3071154A
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US3182674A
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US3182675A
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US3175569A
Cited
US3234955A
Cited
US3246863A
Cited
US3186422A
Cited
US3258685A
Cited
US3266514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |