Patent US2740472A successfully refreshed from Google Patents.
US2740472A
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US
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Shearing machine
Assignee: Individual
•
Filing: 1952-02-01
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Granted: 1956-04-03
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Expires: 1972-02-01
Abstract
No abstract record available.
Inventors
- 👤 George R Eckstein
- 👤 Philip H Burdett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:25
CPC Classifications
B; B23; B23D; B23D23/00; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2027; Y10T83/2092; Y10T83/2096; Y10T83/2122; Y10T83/2129; Y10T83/22; Y10T83/404; Y10T83/412; Y10T83/869; Y10T83/8821; Y10T83/8858; Y10T83/8866
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US771752A
Cited
US1007792A
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US1901067A
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US2041530A
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US2249149A
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FR897332A
Cited
US2343073A
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US2413638A
Cited
US2378777A
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US2401800A
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US2405949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |