US2928135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for embossing film
Assignee: Eastman Kodak Co
•
Filing: 1957-01-07
•
Granted: 1960-03-15
•
Expires: 1977-01-07
Abstract
No abstract record available.
Inventors
- 👤 Robert B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:09
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/04; Y; Y10; Y10S; Y10S425/00; Y10S425/116
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
THE PROCESS FOR PRODUCING EMBOSSED CELLULOSE ACETATE PROPIONATE FILM, WHICH COMPRISES FEEDING THE FILM TO BE EMBOSSED OVER A PLURALITY OF ROOLS FOR OPENING UP TO FILM, SUBJECTING THE OPENED UP FILM TO CLEANING OPERATION, PASSING THE CLEANED FILM TO CONTACT WITH AN EMBOSSING CYLINDER, SAID EMBOSSING CYLINDER CARRYING A THIN FILM OF SOLVENT CONTAINING 1.5-2.5% OF A DIOTYL SODIUM SULFOSCUCINATE ADDITIVE, SAID ADDITIVE SERVING TO PERMIT THE RELATIVELY UNIFORM RELEASE OF THE EMBOSSED FILM FROM THE
References Cited (Backward Citations)
US988981A
Cited
US1744829A
Cited
US1964724A
Cited
US2002711A
Cited
US2176423A
Cited
US2403461A
Cited
US2609568A
Cited
US2681612A
Cited
US2753592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |