US3769253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primer composition for heat curable silicone rubbers
Assignee: Wacker Chemical Corp
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Filing: 1972-04-05
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Granted: 1973-10-30
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Expires: 1992-04-05
Abstract
Abstract A PRIMER COMPOSITION FOR BONDING A HEAT CURABLE SILICONE RUBBER TO A METAL OR FABRIC SUBSTRATE, SAID COMPOSITION COMPRISING AN ALKENYL ACYLOXYSILANE, AN ORGANIC PEROXIDE, A SILICONE POLYMER SUBSTANTIALLY FREE OF HYDROXYL GROUPS CONTAINING FROM 0.01 TO ABOUT 5.0 MOLE PERCENT OF UNSATURATED HYDROCARBON GROUPS AND A HYDROCARBON OR HALOGENATED HYDROCARBON SOLVENT.
Inventors
- 👤 J Stevenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:30
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C09; C09J; C09J5/00; C09J5/02; C08J2383/00; C08J2383/04; C08L; C08L83/00; C08L83/04; C09J2483/00; 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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |