US2693263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic coupling or brake
Assignee: Individual
•
Filing: 1950-11-10
•
Granted: 1954-11-02
•
Expires: 1970-11-10
Abstract
No abstract record available.
Inventors
- 👤 Becking Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:00
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/02; F16D27/04; F16D27/08; F16D55/00; H; H02; H02K; H02K49/00; H02K49/10; H02K49/104; F16D2027/005; F16D2121/00; F16D2121/18; F16D2121/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US880266A
Cited
US1031081A
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US1446225A
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US1447390A
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US1636290A
Cited
US1735648A
Cited
US2098266A
Cited
US1946200A
Cited
GB382905A
Cited
FR751427A
Cited
US2036477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |