US3737430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,n'-bis((tri(substituted))silylalkylene)-1,4-xylene-alpha,alpha'-diimine
Assignee: Qo Chemicals Inc
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Filing: 1972-04-05
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Granted: 1973-06-05
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Expires: 1992-04-05
Abstract
Abstract WHEREIN R1 IS AN ALKYLENE RADICAL AND WHEREIN OR2 IS A HYDROLYZABLE GROUP AND R2 IS ALKYL, ARYL, HETEROCYCLIC, OR SUBSTITUTED DERIVATIVES THEREOF, USEFUL FOR EXAMPLE IN PROMOTING RESIN TO SAND AND RESIN TO RESIN BONDS. 1,4-DI((R2-O)3-SI-R1-N=CH-)BENZENE A NEW COMPOSITION OF THE FORMULA:
Inventors
- 👤 L Brown
- 👤 A Dunlop
- 👤 D Eftax
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:40
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/40; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 0
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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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |