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Patent US2763571A successfully refreshed from Google Patents.
US2763571A
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Non-fibrous regenerated cellulose film carrying an anchoring agent and method of making
Assignee: Wyeth Holdings LLC
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Filing: 1954-03-23
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Granted: 1956-09-18
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Expires: 1974-03-23
Abstract
No abstract record available.
Inventors
- 👤 William M Wooding
- 👤 Lennart A Lundberg
- 👤 Walter F Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/048; C08J2301/00; C08J2301/06; C08J2477/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A SUBSTANTIALLY NEUTRAL NON-FIBROUS REGENERATED CELLULOSE FILM IMPREGNATED WITH A CONDENSATION PRODUCT OF 1 TO 3 MOLS OF EPICHLOROHYDRIN AND 1 MOL OF AN ALIPHATIC LINEAR PRIMARY MONOAMINE CONTAINING 14 TO 22 CARBON ATOMS.
Claim 2
Dependent Claim
34 words
A SUBSTANTIALLY NEUTRAL NON-FIBROUS REGENERATED CELLULOSE FILM IMPREGNATED WITH A CONDENSATION PRODUCT OF 1 TO 3 MOLS OF EPICHLOROHYDRIN AND 1 MOL OF AN ALIPHATIC LINEAR PRIMARY MONOAMINE CONTAINING 14 TO 22 CARBON ATOMS.
References Cited (Backward Citations)
US2573956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |