Patent US3838110A successfully refreshed from Google Patents.
US3838110A
Expired / Lapsed
US
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Inherently mold-releasable mold or casting composition
Assignee: ATK Launch Systems LLC
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Filing: 1973-05-03
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Granted: 1974-09-24
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Expires: 1993-05-03
Abstract
Abstract AN INHERENTLY MOLD-RELEASABLE COMPOSITION WHICH MAY BE USED AS EITHER THE CASTING COMPOSITON OR, IN ITS CURED STATE, THE MOLD OR AS A MOLD LINER IS DISCLOSED. NO ADDITIONAL MOLD RELEASE AGENT IS NECESSARY WHEN USING THE COMPOSITION HEREIN WHICH IS PREPARED FROM (A) HYDROXYL OR CARBOXYL-TERMINATION POLYMERS CONTAINING PENDANT 3PERFLUOROALKYL - 2 - IODOPROPYL OR 2-PERFLUOROALKYL-1-IODOETHYL GROUPS, AND (B) POLYISOCYANATES OR POLYEPOXIDES.
Inventors
- 👤 J Villa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:28
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69; C08G18/696; C08G18/40; C08G18/42; C08G18/46; C08G18/4607; C08G18/48; C08G18/50; C08G18/5003; C08G18/5015; C08G18/5018; C08G18/64; C08G18/6453; C08L; C08L63/00
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |