Patent US2563005A successfully refreshed from Google Patents.
US2563005A
Expired / Lapsed
US
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Organopolysilane resins
Assignee: Dow Silicones Corp
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Filing: 1949-06-15
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Granted: 1951-08-07
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Expires: 1969-06-15
Abstract
No abstract record available.
Inventors
- 👤 Harold A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:14
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
ORGASNOPOLYSAILINE RESINS IN WHICH THE SILICON ATOMS IN THE MOLECULES THEREOF ARE INTERCONNECTED BY SUBSTANTIALLY ONLY SILICON TO SILICON BONDING, THE REMAINING VALENCES OF THE SILICON ATOMS BEING SATISIFIED BY PHENYL AND METHYL RADICALS, WHICH RESIN CONTAINS FROM 1.2 TO 2, INCLUSIVE, TOTAL PHENYL ANDD METHYL RADICALS PER SILICON ATOM AND IN WHICH RESIN BETWEEN 20 AND 70 PER CENT OF SUCH TOTAL PHENYL AND METHYL RADICALS ARE PHENYL RADICALS.
Claim 2
Dependent Claim
70 words
ORGASNOPOLYSAILINE RESINS IN WHICH THE SILICON ATOMS IN THE MOLECULES THEREOF ARE INTERCONNECTED BY SUBSTANTIALLY ONLY SILICON TO SILICON BONDING, THE REMAINING VALENCES OF THE SILICON ATOMS BEING SATISIFIED BY PHENYL AND METHYL RADICALS, WHICH RESIN CONTAINS FROM 1.2 TO 2, INCLUSIVE, TOTAL PHENYL ANDD METHYL RADICALS PER SILICON ATOM AND IN WHICH RESIN BETWEEN 20 AND 70 PER CENT OF SUCH TOTAL PHENYL AND METHYL RADICALS ARE PHENYL RADICALS.
References Cited (Backward Citations)
US2410346A
Cited
US2483972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |