US3754971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urea silicon product and uses thereof
Assignee: Union Carbide Corp
•
Filing: 1972-04-14
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Granted: 1973-08-28
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Expires: 1992-04-14
Abstract
Abstract This invention relates to urea containing silicon compounds of the formula
Inventors
- 👤 E Pepe
- 👤 J Marsden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:45
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C08G77/22; C08G77/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
The product of claim 1 wherein the substrate is made of glass.
Claim 2
Dependent Claim
41 words
In a composite of an inorganic substrate and an organic resin wherein the adhesion of said resin to said substrate is enhanced by a coupling agent, the improvement which comprises employing as said coupling agent a silicon compound containing the radical
References Cited (Backward Citations)
US3676478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |