US2829540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam and follower mechanism
Assignee: ACF Industries Inc
•
Filing: 1952-08-18
•
Granted: 1958-04-08
•
Expires: 1972-08-18
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Niemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:01
CPC Classifications
F; F16; F16H; F16H53/00; F16H53/06; F02; F02M; F02M59/00; F02M59/12; F02M59/14; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1323; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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BE515746A
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FR432504A
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US1729448A
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US1977789A
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US2404231A
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US2418757A
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GB605242A
Cited
US2415623A
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US2569096A
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US2654266A
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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) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |