US2925352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticisers
Assignee: Acordis UK Ltd
•
Filing: 1957-04-03
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Granted: 1960-02-16
•
Expires: 1977-04-03
Abstract
No abstract record available.
Inventors
- 👤 Lowe William Geoffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A COMPOSITION OF WHICH THE MAJOR PORTION IS A CELLULOSE ACETATE CONTAINING 37-54% OF COMBINED ACETIC ACID, SAID COMPOSITION CONTAINING AS PLASTICIZER FOR THE POLYMER AND IN AMOUNT SUFFICIENT TO PLASTICIZE SAID COMPOSITION, AN ESTER OF THE FORMULA:
Claim 2
Dependent Claim
38 words
A COMPOSITION OF WHICH THE MAJOR PORTION IS A CELLULOSE ACETATE CONTAINING 37-54% OF COMBINED ACETIC ACID, SAID COMPOSITION CONTAINING AS PLASTICIZER FOR THE POLYMER AND IN AMOUNT SUFFICIENT TO PLASTICIZE SAID COMPOSITION, AN ESTER OF THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |