Patent US3194866A successfully refreshed from Google Patents.
US3194866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a sheet
Assignee: Eastman Kodak Co
•
Filing: 1961-12-22
•
Granted: 1965-07-13
•
Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Roger E Gibson
- 👤 Lester W A Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:30
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/911; B29C48/9135; B29C48/9175; B29C48/03; B29C48/07; B29C48/08; B29C48/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A METHOD OF FORMING A SHEET HAVING IMPROVED SURFACE CHARACTERISTICS FROM A CELLULOSE ESTER COMPOSITION BLENDED WITH A PETROLEUM OIL COMPRISING THE STEPS OF EXTRUDING INTO THE FORM OF A SHEET AT A TEMPERATURE SUFFICIENT TO VAPORIZE THE PETROLEUM OIL A COMPOSITION COMPRISING (A) 100 PARTS BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE LOWER FATTY ACID ESTERS OF CELLULOSE AND THE MIXED LOWER FATTY ACID ESTERS OF CELLULOSE AND, (B) 0.05 TO 5 PARTS BY WEIGHT OF A PETROLEUM OIL HAVING A BOILING POINT WITHIN THE RANGE OF 400* F. TO 935* F. MOVING THE EMERGING SHEET THROUGH A DISTANCE OF ABOUT 2-5 INCHED TO A COOLED MOVING SURFACE WHILE CONDENSING THE VAPORIZED PETROLEUM OIL ON THE COOLED MOVING SURFACE CLOSELY ADJACENT THE SURFACE OF THE SHEET AND FORMING A LIQUID INTERFACE BETWEEN THE SHEET AND THE COOLED MOVING SURFACE.
Claim 2
Independent Claim
145 words
A METHOD OF FORMING A SHEET HAVING IMPROVED SURFACE CHARACTERISTICS FROM A CELLULOSE ESTER COMPOSITION BLENDED WITH A PETROLEUM OIL COMPRISING THE STEPS OF EXTRUDING INTO THE FORM OF A SHEET AT A TEMPERATURE SUFFICIENT TO VAPORIZE THE PETROLEUM OIL A COMPOSITION COMPRISING (A) 100 PARTS BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE LOWER FATTY ACID ESTERS OF CELLULOSE AND THE MIXED LOWER FATTY ACID ESTERS OF CELLULOSE AND, (B) 0.05 TO 5 PARTS BY WEIGHT OF A PETROLEUM OIL HAVING A BOILING POINT WITHIN THE RANGE OF 400* F. TO 935* F. MOVING THE EMERGING SHEET THROUGH A DISTANCE OF ABOUT 2-5 INCHED TO A COOLED MOVING SURFACE WHILE CONDENSING THE VAPORIZED PETROLEUM OIL ON THE COOLED MOVING SURFACE CLOSELY ADJACENT THE SURFACE OF THE SHEET AND FORMING A LIQUID INTERFACE BETWEEN THE SHEET AND THE COOLED MOVING SURFACE.
References Cited (Backward Citations)
US2736066A
Cited
US2027829A
Cited
US2201747A
Cited
US2364435A
Cited
US2412920A
Cited
US2559794A
Cited
US2499526A
Cited
US2909810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |