US2528316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic coupling transmission
Assignee: Bishop and Babcock Manufacturing Co
•
Filing: 1946-10-31
•
Granted: 1950-10-31
•
Expires: 1966-10-31
Abstract
No abstract record available.
Inventors
- 👤 Edward L Mayo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:08
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/02; F16D27/04; F16D27/06; F16D2027/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR394869A
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US1018476A
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US1201856A
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US1569651A
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US1756907A
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US1902471A
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US1868910A
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US1973199A
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US2214901A
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US2280736A
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US2214391A
Cited
US2281711A
Cited
US2442456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |