Patent US1944362A successfully refreshed from Google Patents.
US1944362A
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Hydraulic feed for machine tools
Assignee: PRODUCTION ENGINEERING Co
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Filing: 1929-03-11
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Granted: 1934-01-23
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Expires: 1949-03-11
Abstract
No abstract record available.
Inventors
- 👤 Oberhoffken Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:30
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/04; F15B11/042; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/20576; F15B2211/20584; F15B2211/255; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/3056; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/41; F15B2211/411; F15B2211/42; F15B2211/421; F15B2211/423; F15B2211/45; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7055; F15B2211/75; Y; Y10; Y10T; Y10T408/00; Y10T408/65; Y10T408/675; Y10T408/6757
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-01-22 | 1937-07-24 | 1938-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-01-22 | 1941-07-24 | 1942-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-01-22 | 1945-07-24 | 1946-01-23 | $7700.00 | Window Closed / Lapsed |