US2896583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counterbalancing hydraulic cylinder
Assignee: Individual
•
Filing: 1956-12-28
•
Granted: 1959-07-28
•
Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 Jarvis A Stixrood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:41
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/26; F15B15/261; F15B15/08; F15B15/14; F15B15/1423; F15B15/1476; F16; F16F; F16F15/00; F16F15/28
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |