US2423583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming hard resinous surfaces on organic plastics, and product thereof
Assignee: Polaroid Corp
•
Filing: 1941-10-20
•
Granted: 1947-07-08
•
Expires: 1961-10-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Dexter P Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00009; B29D11/0073; G; G02; G02B; G02B1/00; G02B1/04; G02B1/041; G02C; G02C7/00; G02C7/02; G02C7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2087795A
Cited
US1964039A
Cited
US1953892A
Cited
US2028776A
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US1989371A
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US2047253A
Cited
US2129665A
Cited
US2129722A
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US2044579A
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GB482836A
Cited
US2184876A
Cited
US2233941A
Cited
US2185018A
Cited
GB490381A
Cited
US2316274A
Cited
US2252091A
Cited
US2280055A
Cited
US2274706A
Cited
US2263249A
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US2320533A
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US2322310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |