US2936712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable displacement pump
Assignee: Deere and Co
•
Filing: 1958-01-20
•
Granted: 1960-05-17
•
Expires: 1978-01-20
Abstract
No abstract record available.
Inventors
- 👤 Harlan W Van Gerpen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:34
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/16; F15B11/161; F15B11/165; F04; F04B; F04B1/00; F04B1/04; F04B1/0404; F04B1/0408; F04B53/00; F04B53/14; F04B53/142; F04B9/00; F04B9/02; F04B9/06; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20546; F15B2211/20553; F15B2211/30; F15B2211/31; F15B2211/3105; F15B2211/3111; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/327; F15B2211/35; F15B2211/351; F15B2211/40; F15B2211/405; F15B2211/40507; F15B2211/415; F15B2211/41554; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/55; F15B2211/57; F15B2211/60; F15B2211/605; F15B2211/6051; F15B2211/6052; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7052; F15B2211/7053
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA475311A
Cited
US1983262A
Cited
US1983261A
Cited
US2064750A
Cited
US2094171A
Cited
US2577242A
Cited
US2753805A
Cited
FR1132154A
Cited
US2821144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |