Patent US1838780A successfully refreshed from Google Patents.
US1838780A
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Automatic material feeding machine
Assignee: EARL WEIMAR
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Filing: 1929-06-19
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Granted: 1931-12-29
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Expires: 1949-06-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Miller
- 👤 George A Weigt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:57
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/10; B23Q7/106; B27; B27B; B27B25/00; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6608; Y10T83/6614; Y10T83/6616; Y10T83/6619
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-12-28 | 1935-06-29 | 1935-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-12-28 | 1939-06-29 | 1939-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-12-28 | 1943-06-29 | 1943-12-29 | $7700.00 | Window Closed / Lapsed |