US3789050A
Expired / Lapsed
US
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Process and compositions of rubber vulcanizates with silicone polymerizates
Assignee: Unifrax I LLC
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Filing: 1971-04-20
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Granted: 1974-01-29
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Expires: 1991-04-20
Abstract
Abstract A PROCESS FOR MAKING IMPROVED COMPOSITIONS OF RUBBER VULCANIZATES, SIMULTANEOUSLY POLYMERIZED WITH SILICONES TO GIVE IMPROVED ABRASION RESISTANT BODIES CONTAINING POWDERS OR GRANULES OF ABRASIVE INORGNIC MATERIALS. THE BODIES ARE FORMED UNDER PRESSURE OF ABOUT 2 KG./CM.2 AND TEMPERATURES OF 100-180*C.
Inventors
- 👤 D Loricchio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:13
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/14; C; C08; C08K; C08K3/00; C08K3/01; C08K3/013; C08K9/00; C08K9/08; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |