US2576320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reconditioning paper surfaces
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1946-05-01
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Granted: 1951-11-27
•
Expires: 1966-05-01
Abstract
No abstract record available.
Inventors
- 👤 Vlad John
- 👤 Jr John R Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:50
CPC Classifications
G; G03; G03C; G03C11/00; G03C11/06; G03C1/00; G03C1/76; G03C1/775
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US597806A
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US1464477A
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US1447734A
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US1744767A
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US2102506A
Cited
GB464280A
Cited
US2249800A
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US2195689A
Cited
US2238045A
Cited
US2324303A
Cited
US2405209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |