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Patent US2782128A successfully refreshed from Google Patents.
US2782128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized cellulose acetate
Assignee: Celanese Corp
•
Filing: 1952-04-16
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Granted: 1957-02-19
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Expires: 1972-04-16
Abstract
No abstract record available.
Inventors
- 👤 Walter D Paist
- 👤 Berardinelli Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:04
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A COMPOSITION OF MATTER COMPRISING CELLULOSE ACETATE PLASTICIZED WITH
Claim 2
Dependent Claim
9 words
A COMPOSITION OF MATTER COMPRISING CELLULOSE ACETATE PLASTICIZED WITH
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) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |