US2839138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittent feed mechanism
Assignee: Uniroyal Inc
•
Filing: 1952-08-06
•
Granted: 1958-06-17
•
Expires: 1972-08-06
Abstract
No abstract record available.
Inventors
- 👤 Kurt E Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:02
CPC Classifications
F; F16; F16H; F16H27/00; F16H27/04; F16H27/10; B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/08; B21D43/09; B26; B26D; B26D1/00; B26D1/01; B26D1/04; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1532; Y10T74/1537; Y10T83/00; Y10T83/444; Y10T83/4597; Y10T83/4599
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US677518A
Cited
US678371A
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US1489014A
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US1947015A
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US2066131A
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US2188871A
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US2304514A
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US2359420A
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US2648183A
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US2652247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |