Patent US2933185A successfully refreshed from Google Patents.
US2933185A
Expired / Lapsed
US
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Method and apparatus for classifying sheets according to length
Assignee: United States Steel Corp
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Filing: 1955-05-11
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Granted: 1960-04-19
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Expires: 1975-05-11
Abstract
No abstract record available.
Inventors
- 👤 William E Coleman
- 👤 Thomas A Mclauchlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:25
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; B07C5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2033645A
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US1988702A
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US2138645A
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US2415177A
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US2415179A
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US2618386A
Cited
US2630043A
Cited
GB682303A
Cited
US2736431A
Cited
US2795705A
Cited
US2740521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |