Patent US2806387A successfully refreshed from Google Patents.
US2806387A
Expired / Lapsed
US
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Variable speed transmission
Assignee: Daimler Benz AG
•
Filing: 1950-08-22
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Granted: 1957-09-17
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Expires: 1970-08-22
Abstract
No abstract record available.
Inventors
- 👤 Hans J M Forster
- 👤 Esslingen Kreis
- 👤 Karl A Kollmann
- 👤 Theodor F Kumich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:56
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/46; F16H3/48; F16H3/52; F16H3/54; F16H61/00; F16H61/02; F16H61/0262; F16H2716/00; F16H2716/04
Claims Analysis
Total Claims: 0
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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) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |