Patent US2980554A successfully refreshed from Google Patents.
US2980554A
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Non-fibrous regenerated cellulose film containing anchoring-plasticizing agent
Assignee: Wyeth Holdings LLC
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Filing: 1959-01-27
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Granted: 1961-04-18
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Expires: 1979-01-27
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Gentile
- 👤 Porter Clemmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:56
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/06; C08J7/065; C08J7/0427; C08J7/043; C08J2301/00; C08J2301/06; C08J2477/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
NON-FIBROUS REGENERATED CELLULOSE FILM CONTAINING AS ANCHORING-PLASTICIZING AGENT OF A WATER-SOLUBLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMIDES AND AMINES CONTAINING AT LEAST 6 LOWER ALKYLENEOXY GROUPS AND AT
Claim 2
Dependent Claim
30 words
NON-FIBROUS REGENERATED CELLULOSE FILM CONTAINING AS ANCHORING-PLASTICIZING AGENT OF A WATER-SOLUBLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMIDES AND AMINES CONTAINING AT LEAST 6 LOWER ALKYLENEOXY GROUPS AND AT
References Cited (Backward Citations)
US2823141A
Cited
US2763571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |