Patent US2998717A successfully refreshed from Google Patents.
US2998717A
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Flexible coupling device
Assignee: Bayer Corp
•
Filing: 1958-07-18
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Granted: 1961-09-05
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Expires: 1978-07-18
Abstract
No abstract record available.
Inventors
- 👤 Schwenk Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:32
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/26; F16D3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1409611A
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US1530800A
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GB252529A
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US2051442A
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US2449654A
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US2504750A
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US2659218A
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US2764002A
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US2913884A
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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) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |