US3392537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid cylinder system
Assignee: Airco Inc
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Filing: 1967-03-29
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Granted: 1968-07-16
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Expires: 1987-03-29
Abstract
No abstract record available.
Inventors
- 👤 Richard C Woerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:35
CPC Classifications
F; F17; F17C; F17C9/00; F17C9/02; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0119; F17C2205/00; F17C2205/01; F17C2205/0123; F17C2205/013; F17C2205/0134; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/04; F17C2223/042; F17C2223/043; F17C2223/045; F17C2223/046; F17C2223/047; F17C2227/00; F17C2227/03; F17C2227/0367; F17C2227/0388; F17C2227/0393
Claims Analysis
Total Claims: 0
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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) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |