Patent US3540307A successfully refreshed from Google Patents.
US3540307A
Expired / Lapsed
US
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Tumbling gear planetary transmission
Assignee: Individual
•
Filing: 1968-07-11
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Granted: 1970-11-17
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Expires: 1988-07-11
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Schell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:15
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/72; B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/34; B23Q5/38; B23Q5/46; F16H1/00; F16H1/28; F16H1/32; F16H1/321; F28; F28D; F28D9/00; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |