US2831386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous feed facing attachment for machine tools
Assignee: Giddings and Lewis LLC
•
Filing: 1952-11-07
•
Granted: 1958-04-22
•
Expires: 1972-11-07
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Woytych
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:58
CPC Classifications
B; B23; B23B; B23B39/00; B23B39/02; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5105; Y10T29/5178; Y10T408/00; Y10T408/91; Y10T82/00; Y10T82/25; Y10T82/2529; Y10T82/2531; Y10T82/2541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US584422A
Cited
US1994879A
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US2269641A
Cited
US2345060A
Cited
US2554207A
Cited
US2367555A
Cited
US2457533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |