Patent US2900840A successfully refreshed from Google Patents.
US2900840A
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US
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Stepwise operating driving device
Assignee: US Philips Corp
•
Filing: 1957-12-10
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Granted: 1959-08-25
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Expires: 1977-12-10
Abstract
No abstract record available.
Inventors
- 👤 Greve Reinhard Cornelis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:02
CPC Classifications
F; F16; F16H; F16H31/00; F16H31/003; F16H31/005; H; H01; H01H; H01H67/00; H01H67/02; H01H67/04; H01H67/06; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1553; Y10T74/1555; Y10T74/1558; Y10T74/1584; Y10T74/21; Y10T74/2133; Y10T74/2141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2736204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |