US2599984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant consisting of copolymeric siloxanes substituted with methyl, phenyl, and halogenated-aryl radicals
Assignee: Dow Silicones Corp
•
Filing: 1949-09-14
•
Granted: 1952-06-10
•
Expires: 1969-09-14
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Fletcher
- 👤 Melvin J Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:18
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2229/00; C10M2229/04; C10M2229/05; C10M2229/051; C10N; C10N2010/00; C10N2010/02; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A COMPOSITION OF MATTER COMPOSED OF A LIQUID COPOLYMERIC SILOXANE HAVING A DEGREE OF SUBSTITUTION OF GREATER THAN 2 AND LESS THAN 3 ORGANIC RADICALS PER SILICON ATOM SAID SILOXANE CONTAINING HALOGENATED ARYL RADICALS SELECTED FROM THE GROUP CONSISTING OF HALOGENATED PHENYL AND HALOGENATED XENYL RADICALS SAID RADICALS HAVING SUBSTITUTED THEREIN FROM 1 TO 7 INCLUSIVE HALOGEN ATOMS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE, THE REMAINING ORGANIC RADICALS IN SAID SILOXANE BEING SELECTED FROM THE GROUP CONSISTING OF METHYL AND PHENYL RADICALS, IN WHICH SILOXANE THE HALOGENATED ARYL RADICALS ARE PRESENT IN AMOUNT SO THAT THE RATIO OF HALOGEN ATOMS TO SILICON ATOMS IS FROM 0.05 TO 3 AND IN WHICH SILOXANE AT LEAST 37 PERCENT OF THE TOTAL NUMBER OF ORGANIC RADICALS ARE METHYL RADICALS.
Claim 2
Dependent Claim
129 words
A COMPOSITION OF MATTER COMPOSED OF A LIQUID COPOLYMERIC SILOXANE HAVING A DEGREE OF SUBSTITUTION OF GREATER THAN 2 AND LESS THAN 3 ORGANIC RADICALS PER SILICON ATOM SAID SILOXANE CONTAINING HALOGENATED ARYL RADICALS SELECTED FROM THE GROUP CONSISTING OF HALOGENATED PHENYL AND HALOGENATED XENYL RADICALS SAID RADICALS HAVING SUBSTITUTED THEREIN FROM 1 TO 7 INCLUSIVE HALOGEN ATOMS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE, THE REMAINING ORGANIC RADICALS IN SAID SILOXANE BEING SELECTED FROM THE GROUP CONSISTING OF METHYL AND PHENYL RADICALS, IN WHICH SILOXANE THE HALOGENATED ARYL RADICALS ARE PRESENT IN AMOUNT SO THAT THE RATIO OF HALOGEN ATOMS TO SILICON ATOMS IS FROM 0.05 TO 3 AND IN WHICH SILOXANE AT LEAST 37 PERCENT OF THE TOTAL NUMBER OF ORGANIC RADICALS ARE METHYL RADICALS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |