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US3371060A
Expired / Lapsed
US
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Acetals of hydroxy-containing vinyl polymers and formylbenzene sulfonamides and gelsthereof
Assignee: Polaroid Corp
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Filing: 1966-08-01
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Granted: 1968-02-27
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Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Lloyd D Taylor
- 👤 Maurice J Fitzgerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:17
CPC Classifications
G; G03; G03C; G03C8/00; G03C1/00; G03C1/005; G03C1/04; G03C1/053; G03C8/42; G03C8/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2412200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |