US3439579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for releasing or producing hydraulic pressure in a chamber
Assignee: Poclain SA
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Filing: 1967-05-12
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Granted: 1969-04-22
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Expires: 1987-05-12
Abstract
No abstract record available.
Inventors
- 👤 Gabriel L Guinot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:34
CPC Classifications
F; F16; F16H; F16H43/00; B; B66; B66D; B66D5/00; B66D5/02; B66D5/24; B66D5/26; F15; F15B; F15B11/00; F15B11/16; F15B11/20; F16D; F16D65/00; F16D65/14; F16D65/28; B66D2700/00; B66D2700/03; B66D2700/035; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2559; Y10T137/2564; Y10T137/2567
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) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |