US2767598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed control system for machine tools
Assignee: Individual
•
Filing: 1952-03-15
•
Granted: 1956-10-23
•
Expires: 1972-03-15
Abstract
No abstract record available.
Inventors
- 👤 Fred G Burg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:12
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q2705/00; B23Q2705/02; B23Q2705/023; Y; Y10; Y10T; Y10T408/00; Y10T408/36; Y10T408/37; Y10T408/70; Y10T408/72; Y10T74/00; Y10T74/14; Y10T74/1418; Y10T74/1424; Y10T74/1441; Y10T74/19; Y10T74/19023; Y10T74/1914; Y10T74/19219; Y10T74/19251; Y10T74/19279; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19437; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US863966A
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GB304880A
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US2581804A
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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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |