US2541752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for inspecting sheets
Assignee: National Steel Corp
•
Filing: 1946-05-10
•
Granted: 1951-02-13
•
Expires: 1966-05-10
Abstract
No abstract record available.
Inventors
- 👤 Charles M Eddy
- 👤 Harold I Hooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:31
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/22; B65G47/24; B65G47/248; B65G47/252; B65H; B65H15/00; B65H2301/00; B65H2301/30; B65H2301/33; B65H2301/332; B65H2301/3321; B65H2301/33214; B65H2301/3322; B65H2301/33224; B65H2301/34; B65H2301/342; B65H2404/00; B65H2404/20; B65H2404/26; B65H2404/261
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1272847A
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US1381677A
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US1337031A
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US1385000A
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US1578617A
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US1541651A
Cited
US1585275A
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US1862676A
Cited
US2410611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |