US3483893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydropneumatic accumulator
Assignee: LIQUID DYNAMICS Inc
•
Filing: 1967-03-13
•
Granted: 1969-12-16
•
Expires: 1987-03-13
Abstract
No abstract record available.
Inventors
- 👤 David C W Morley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:15
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/40; F15B2201/415; F15B2201/43; F15B2201/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2246667A
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US2337771A
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US2532143A
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US2760518A
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US2786488A
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US2851059A
Cited
US2904077A
Cited
US3348578A
Cited
US3277925A
Cited
US3424201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |