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US3829529A
Expired / Lapsed
US
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Room-temperature curing organopolysiloxanes
Assignee: Wacker Chemical Corp
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Filing: 1973-05-29
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Granted: 1974-08-13
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Expires: 1993-05-29
Abstract
Abstract THE INVENTION RELATES TO SILANE CROSS-LINKING AGENTS HAVING A DIFFERENT HYDROLYZABLE GROUPS ON THE SILANE MOLECULE AND TO CURABLE ON-COMPONENT MODIFIED ORGANOPOLYSILOXANE COMPOSITIONS OBTAINED FROM THE REACTION OF THESE CROSS-LINKING AGENTS WHICH HYDROXYL-TERMINATED ORGANOPOLYSILOXANES.
Inventors
- 👤 G Lengnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:44
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C07F7/08; C07F7/0834; C07F7/0892; C07F7/10; C08; C08G; C08G77/00; C08G77/42; C08G77/442; Y; Y10; Y10S; Y10S528/00; Y10S528/901
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) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |