Patent US2814570A successfully refreshed from Google Patents.
US2814570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose ether compositions
Assignee: Atlantic Research Corp
•
Filing: 1955-01-03
•
Granted: 1957-11-26
•
Expires: 1975-01-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:24
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/08; C08L1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A FLUID, POURABLE, SUBSTANTIALLY HOMOGENEOUS SUSPENSION OF WATER-INSOLUBLE CELLULOSE ETHER IN A LIQUID VEHICLE CONSISTING ESSENTIALLY OF NON-VOLATILE PLASTICIZER CHARACTERIZED BY ITS ABILITY TO DISSOLVE THE CELLULOSE ETHER READILY ONLY AT ELEVATED TEMPERATURES, THE CELLULOSE ETHERBEING IN THE FORM OF SOLID, SUBSTANTIALLY SPHERICAL, SUBSTANTIALLY NON-POROUS PARTICLES HAVING A MAXIMUM DIAMETERR OF ABOUT 100 MICRONS, THE MINIMUM RATIO BY WEIGHT OF CELLULOSE ETHER TO PLASTICIZER BEING ABOUT 2:3.
Claim 2
Dependent Claim
67 words
A FLUID, POURABLE, SUBSTANTIALLY HOMOGENEOUS SUSPENSION OF WATER-INSOLUBLE CELLULOSE ETHER IN A LIQUID VEHICLE CONSISTING ESSENTIALLY OF NON-VOLATILE PLASTICIZER CHARACTERIZED BY ITS ABILITY TO DISSOLVE THE CELLULOSE ETHER READILY ONLY AT ELEVATED TEMPERATURES, THE CELLULOSE ETHERBEING IN THE FORM OF SOLID, SUBSTANTIALLY SPHERICAL, SUBSTANTIALLY NON-POROUS PARTICLES HAVING A MAXIMUM DIAMETERR OF ABOUT 100 MICRONS, THE MINIMUM RATIO BY WEIGHT OF CELLULOSE ETHER TO PLASTICIZER BEING ABOUT 2:3.
References Cited (Backward Citations)
US1910948A
Cited
US1516225A
Cited
US1908550A
Cited
US1921582A
Cited
US1953953A
Cited
US2604412A
Cited
US2477009A
Cited
US2591904A
Cited
US2722528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |