US3194866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a sheet
Assignee: Eastman Kodak Co
•
Filing: 1961-12-22
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Granted: 1965-07-13
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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 04:14
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.
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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 |