US2848874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valves for hydraulic presses
Assignee: Electraulic Presses Ltd
•
Filing: 1954-12-08
•
Granted: 1958-08-26
•
Expires: 1974-12-08
Abstract
No abstract record available.
Inventors
- 👤 Towler John Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:36
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/22; F; F15; F15B; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/21; F15B2211/212; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/31; F15B2211/3105; F15B2211/3111; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50536; F15B2211/515; F15B2211/5151; F15B2211/52; F15B2211/528; F15B2211/55; F15B2211/60; F15B2211/635; F15B2211/6355; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7053; F15B2211/76
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US747749A
Cited
US1459162A
Cited
US1727820A
Cited
US1888332A
Cited
US1851502A
Cited
US2103984A
Cited
US2318851A
Cited
US2617389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |