US3537357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydropneumatic accumulator
Assignee: LIQUID DYNAMICS Inc
•
Filing: 1968-06-04
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Granted: 1970-11-03
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Expires: 1988-06-04
Abstract
No abstract record available.
Inventors
- 👤 Martin Richard Packer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:16
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/24; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/31; F15B2201/315; F15B2201/3151; F15B2201/32; F15B2201/40; F15B2201/41; F15B2201/413; F15B2201/415; F15B2201/43; F15B2201/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |