US2674850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic actuating and control circuit for machine tools
Assignee: Babcock and Wilcox Co
•
Filing: 1946-10-01
•
Granted: 1954-04-13
•
Expires: 1966-10-01
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Svenson
- 👤 Swen H Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:07
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/26; B23Q5/261; B23Q5/263; B23B; B23B39/00; B23B39/04; B23B39/08; B23Q1/00; B23Q1/0009; B23Q1/0018; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/65; Y10T408/675; Y10T408/6757
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |