US3793253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixtures of 5-silamidazolidones-(2) which contain isocyanate groups and urethanes
Assignee: Bayer AG
•
Filing: 1972-08-01
•
Granted: 1974-02-19
•
Expires: 1992-08-01
Abstract
Abstract MIXTURES OF URETHANES AND 5-SILISMIFSZOLIDONES-(2) WHICH CONTAINISOCYANATE GROUPS AND A PROCESS FOR THE PREPARATION OF SAID MIXTURES ARE DISCLOSED. THE COMPOSITIONS OF THE INVENTION ARE EMINENTLY SUITED AS BONDING INTERLAYERS FOR SILICEOUS OR METALLIC SURFACES WHICH ARE TO BE COATED WITH SYNTHETIC RESINS OR ELASTOMERS.
Inventors
- 👤 B Quiring
- 👤 K Wagner
- 👤 I Goelitz
- 👤 W Noll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:34
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/1077; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/10; C07F7/18; C07F7/1804; Y; Y10; Y10S; Y10S528/00; Y10S528/905
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |