US2880759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydro-pneumatic energy storage device
Assignee: Bendix Aviation Corp
•
Filing: 1956-06-06
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Granted: 1959-04-07
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Expires: 1976-06-06
Abstract
No abstract record available.
Inventors
- 👤 Franklin O Wisman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:43
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/16; F15B1/165; F15B1/12; F15B1/125; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3151; F15B2201/3152; F15B2201/3156; F15B2201/40; F15B2201/415; F15B2201/4155; F15B2201/43; F15B2201/435; Y; Y02; Y02E; Y02E60/00; Y02E60/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2216374A
Cited
US2339076A
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US2378467A
Cited
US2397248A
Cited
US2740259A
Cited
US2757689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |