US2842357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circulating systems for hydraulic liquid between storage tanks and cylinders
Assignee: Individual
•
Filing: 1957-03-04
•
Granted: 1958-07-08
•
Expires: 1977-03-04
Abstract
No abstract record available.
Inventors
- 👤 Floyd M Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:29
CPC Classifications
B; B21; B21D; B21D24/00; B21D24/02; F; F15; F15B; F15B1/00; F15B1/26; F15B21/00; F15B21/04; F15B21/042; F15B21/0423; F15B2211/00; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |