US2811461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose organic acid ester plastics containing resorcinol mono-meta-hydroxybenzoate
Assignee: Eastman Kodak Co
•
Filing: 1954-04-14
•
Granted: 1957-10-29
•
Expires: 1974-04-14
Abstract
No abstract record available.
Inventors
- 👤 Lester W A Meyer
- 👤 Margaret H Broyles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:29
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/134; C08K5/1345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A CELLULOSE ORGANIC ACID ESTER PLASTIC COMPRISING A CELLULOSE ORGANIC ACID ESTER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ACETATE, CELLULOSE PROPIONATE, CELLULOSE BUTYRATE,CELLULOSE ACETATE-PROPIONATE AND CELLULOSE ACETATEBUTYRATE, A PLASTICIZER THEREFOR, AND AS AN AGENT FOR INPROXIMATELY 0.5% TO 5%, BASED ON THE WEIGHT OF THE CELLULOSE ESTER, OF RESORCINOL MONO-M-HYDROXYBENZOATE.
Claim 2
Dependent Claim
51 words
A CELLULOSE ORGANIC ACID ESTER PLASTIC COMPRISING A CELLULOSE ORGANIC ACID ESTER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ACETATE, CELLULOSE PROPIONATE, CELLULOSE BUTYRATE,CELLULOSE ACETATE-PROPIONATE AND CELLULOSE ACETATEBUTYRATE, A PLASTICIZER THEREFOR, AND AS AN AGENT FOR INPROXIMATELY 0.5% TO 5%, BASED ON THE WEIGHT OF THE CELLULOSE ESTER, OF RESORCINOL MONO-M-HYDROXYBENZOATE.
References Cited (Backward Citations)
GB492558A
Cited
US2264291A
Cited
US2432517A
Cited
US2407209A
Cited
US2389370A
Cited
US2454950A
Cited
US2592311A
Cited
US2868812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |