Patent US4331291A successfully refreshed from Google Patents.
Patent US2426953A successfully refreshed from Google Patents.
US2426953A
Expired / Lapsed
US
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Automatic grading table with gauging slots
Assignee: American Machinery Corp
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Filing: 1945-02-10
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Granted: 1947-09-02
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Expires: 1965-02-10
Abstract
No abstract record available.
Inventors
- 👤 George M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:01
CPC Classifications
B; B07; B07B; B07B13/00; B07B13/04; B07B13/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE440407C
Cited
US908012A
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US1099407A
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US1512240A
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US1839614A
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US2295190A
Cited
US2365822A
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US2370262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |