US3069280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine-containing waxes and process for preparing them
Assignee: EIDP Inc
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Filing: 1960-02-23
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Granted: 1962-12-18
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Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Spiegler Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:51
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
174 words
A WAX CONTAINING FROM ABOUT 56% TO ABOUT 70% BY WEIGHT OF FLUORINE WHICH CONSISTS ESSENTIALLY OF A MIXTURE OF (1) ABOUT 50% TO ABOUT 80% BY WEIGHT OF THE REACTION PRODUCT OF TETRAFLUOROETHYLENE AND AT LEAST ONE SILICON COMPOUND OF THE GROUP CONSISTING OF A POLY (DIMETHYL SILOXANE) HAVING A MOLECULAR WEIGHT IN THE RANGE OF FROM 162 TO ABOUT 26,000 AND A SILANE OF THE FORMULA R4SI WHEREIN EACH R REPRESENTS A MEMBER OF THE GROUP CONSISTING OF ALKYL RADICALS OF 1 TO 4 CARBONS ATOMS AND ALKOXY RADICALS OF 1 TO 4 CARBON ASTOMS, AT LEAST ONE R BEING AN ALKYL RADICAL, WHICH REACTION PRODUCT CONTAINS FROM ABOUT 8 TO ABOUT 40 TETRAFLUOROETHYLENE UNITS FOR EACH SILICON ATOM WHICH UNITS FORM POLYFLUOROALKYL CHAINS ATTACHED TO CARBON ATOMS OF THE SILICON COMPOUND, AND (2) ABOUT 50% TO ABOUT 20% BY WEIGHT OF THE TELOMER OF TETRAFLUOROETHYLENE AND A SATURATED FLUOROCHLORO COMPOUND OF THE GROUP CONSISTING OF 1,1,1-TRICHLOROTRIFLUOROETHANE, 1,1,2 - TRICHLOROTRIFLUOROETHANE, FLUOROTRICHLOROMETHANE AND 1,2-DIFLUOROTETRACHLOROETHANE, WHICH TELOMER CONTAINS A POLYFLUOROALKYL GROUP OF THE FORMULA
References Cited (Backward Citations)
DE1067598B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |