US2749778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulated planetary gearing
Assignee: Farrel Birmingham Co Inc
•
Filing: 1952-03-11
•
Granted: 1956-06-12
•
Expires: 1972-03-11
Abstract
No abstract record available.
Inventors
- 👤 Kuhn Walter Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:14
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/28; F16H1/2809; F16H1/2836; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB239068A
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US1928763A
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DE606634C
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US2144937A
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GB612883A
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US2460629A
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US2547877A
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US2591743A
Cited
US2591734A
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DE814981C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |