US2677285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed control apparatus for machine drives
Assignee: Siemens Schuckertwerke AG
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Filing: 1951-05-23
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Granted: 1954-05-04
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Expires: 1971-05-23
Abstract
No abstract record available.
Inventors
- 👤 Volk Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:47
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/0405; B; B23; B23Q; B23Q5/00; B23Q2705/00; B23Q2705/005; Y; Y10; Y10S; Y10S60/00; Y10S60/911; Y10T; Y10T29/00; Y10T29/51; Y10T29/5179; Y10T29/518; Y10T409/00; Y10T409/30; Y10T409/30084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1269489A
Cited
US2124195A
Cited
US2100609A
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US2050719A
Cited
US2186254A
Cited
US2376552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |