Patent US3411380A successfully refreshed from Google Patents.
US3411380A
Expired / Lapsed
US
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Means for increasing the endurance limit of highly stressed structural parts, especially of crank shafts for motor vehicles
Assignee: Daimler Benz AG
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Filing: 1966-07-22
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Granted: 1968-11-19
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Expires: 1986-07-22
Abstract
No abstract record available.
Inventors
- 👤 Ehl Jurgen
- 👤 Hornig Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:39
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/06; C; C21; C21D; C21D9/00; C21D9/30; F16C2240/00; F16C2240/40; F16C2240/50; Y; Y10; Y10S; Y10S148/00; Y10S148/902; Y10S148/904; Y10T; Y10T74/00; Y10T74/21; Y10T74/2173
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2170130A
Cited
US2213241A
Cited
FR799046A
Cited
US2800809A
Cited
US3108913A
Cited
US3257865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |