Patent US3780463A successfully refreshed from Google Patents.
Patent US1259201A successfully refreshed from Google Patents.
Patent US2611245A successfully refreshed from Google Patents.
US2611245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump and motor hydraulic system and regulating apparatus therefor
Assignee: Allis Chalmers Corp
•
Filing: 1948-05-19
•
Granted: 1952-09-23
•
Expires: 1968-05-19
Abstract
No abstract record available.
Inventors
- 👤 Walter F Strehlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:20
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/04; F15B11/042; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/20507; F15B2211/20523; F15B2211/20576; F15B2211/20584; F15B2211/25; F15B2211/30; F15B2211/305; F15B2211/30505; F15B2211/30515; F15B2211/315; F15B2211/3157; F15B2211/31582; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/35; F15B2211/351; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/55; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/8733
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US753361A
Cited
US2192778A
Cited
US1123712A
Cited
US1497258A
Cited
US1455528A
Cited
US1692771A
Cited
US1982711A
Cited
US2159360A
Cited
US2185144A
Cited
US2276895A
Cited
US2451013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |