US2419367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for hydraulic hoists
Assignee: Northern Pump Co
•
Filing: 1940-05-04
•
Granted: 1947-04-22
•
Expires: 1960-05-04
Abstract
No abstract record available.
Inventors
- 👤 Randolph Harrison
- 👤 Garold A Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:25
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; B; B66; B66B; B66B1/00; B66B1/02; B66B1/04; F16H61/4061
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2103808A
Cited
US2122443A
Cited
FR810087A
Cited
US2127877A
Cited
US2254103A
Cited
US2211406A
Cited
US2148262A
Cited
US2319551A
Cited
US2237871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-21 | 1950-10-21 | 1951-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-21 | 1954-10-21 | 1955-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-21 | 1958-10-21 | 1959-04-22 | $7700.00 | Window Closed / Lapsed |