Patent JPS5671579A successfully refreshed from Google Patents.
Patent US6208857B1 successfully refreshed from Google Patents.
US3528346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic cylinder
Assignee: Integrated Dynamics Inc
•
Filing: 1969-04-16
•
Granted: 1970-09-15
•
Expires: 1989-04-16
Abstract
No abstract record available.
Inventors
- 👤 Patrick P Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:50
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1423; F15B15/1447
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |