Patent US3901913A successfully refreshed from Google Patents.
US3901913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imidoorganosilicon compounds
Assignee: Dow Silicones Corp
•
Filing: 1974-06-07
•
Granted: 1975-08-26
•
Expires: 1994-06-07
Abstract
Abstract Compounds of the formula are prepared by reacting an aminofunctional silane with an aromatic dianhydride. The compositions are useful as high temperature coating resins. A typical compound is where Me is methyl.
Inventors
- 👤 Yung K Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:38
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/14; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C08G; C08G77/00; C08G77/48; C08G77/54
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
12 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF ORGANOSILICON COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF ORGANOSILICON COMPOUNDS OF THE FORMULA
Claim 3
Dependent Claim
14 words
The composition of claim 1 in which a is 0 and R'' is phenylene.
Claim 4
Dependent Claim
14 words
The composition of claim 2 in which n is 1 and R is methyl.
Claim 5
Dependent Claim
14 words
The composition of claim 1 in which a is 0 and R'' is (CH2)3.
Claim 6
Dependent Claim
14 words
The composition of claim 4 in which X is ethoxy and n is 0.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |