Patent US3830875A successfully refreshed from Google Patents.
US3830875A
Expired / Lapsed
US
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Method of improving paint adhesion to low-shrink polyester-based resins
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1973-05-23
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Granted: 1974-08-20
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Expires: 1993-05-23
Abstract
Abstract PAINT ADHENSION TO CURED POLYESTER-BASED RESINS IS SEVERELY DETERIORATED BY THE ADDITION OF LOW-SHRINK ADDITIVES TO THE UNCURED RESIN. THIS INVENTION IS A METHOD OF IMPROVING PAINT ADHENSION TO LOW-SHRINK FORMULATED POLYESTER-BASED RESINS BY THE ADDTION OF CERTAIN NITROGEN-CONTAINING VINYL MONOMERS TO THE UNCURED RESIN.
Inventors
- 👤 E Meincke
- 👤 Essen W Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:32
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01; C08L; C08L67/00; C08L67/06
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |