Patent CH172979A successfully refreshed from Google Patents.
US3501980A
Expired / Lapsed
US
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Gear arrangement
Assignee: Nidec Minster Corp
•
Filing: 1968-04-08
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Granted: 1970-03-24
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Expires: 1988-04-08
Abstract
No abstract record available.
Inventors
- 👤 Robert E Arick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:45
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/46; F16H3/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR451716A
Cited
US2242519A
Cited
US2399657A
Cited
US2533056A
Cited
US2810303A
Cited
US2922314A
Cited
FR1131927A
Cited
US3448828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |