US2858771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for hydraulic pumps
Assignee: Individual
•
Filing: 1955-10-27
•
Granted: 1958-11-04
•
Expires: 1975-10-27
Abstract
No abstract record available.
Inventors
- 👤 Richard T Cornelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:05
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/46; F16C33/48; F04; F04B; F04B1/00; F04B1/12; F04B1/122; F04B1/20; F04B1/2014; F04B1/2064; F04B1/2078; F04B1/2085; F16C19/00; F16C19/22; F16C19/30; F16C33/54; F16C33/542; F16C33/543; F16C2360/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2272771A
Cited
US2307719A
Cited
US2331694A
Cited
US2621852A
Cited
US2674191A
Cited
US2737341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |