Patent US3236683A successfully refreshed from Google Patents.
US3236683A
Expired / Lapsed
US
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Method of coating metal with a vinylidene chloride copolymer and polyepoxide reaction product and article produced thereby
Assignee: ATK Launch Systems LLC
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Filing: 1962-10-11
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Granted: 1966-02-22
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Expires: 1982-10-11
Abstract
No abstract record available.
Inventors
- 👤 Morris B Berenbaum
- 👤 Riad H Gobran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:35
CPC Classifications
C; C09; C09D; C09D163/00; C09D127/00; C09D127/02; C09D127/04; C09D127/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AS AN ARTICLE OF MANUFACTURE A METAL SUBSTRATE COATED ON AT LEAST ONE SURFACE THEREOF WITH THE REACTION PRODUCT OF (A) AT LEAST ONE COPOLYMER ESSENTIALLY CONSISTING OF ABOUT 75 TO 95 MOL PERCENT OF VINYLIDENE CHLORIDE AND ABOUT 5 TO 25 MOL PERCENT OF AT LEAST ONE ACID MATERIAL SELECTED FROM THE GROUP CONSISTING OF A,B-UNSATURATED, ALIPHATIC CARBOXYLIC ACIDS AND THEIR ANHYDRIDES, AND (B) AT LEAST ONE POLYEPOXIDE IN AN AMOUNT SUCH AS TO PROVIDE ABOUT 0.01 TO 2.5 MOLS OF EPOXIDE GROUPS PER MOL OF CARBOXYL GROUPS PRESENT IN SAID COPOLYMER.
Claim 2
Dependent Claim
93 words
AS AN ARTICLE OF MANUFACTURE A METAL SUBSTRATE COATED ON AT LEAST ONE SURFACE THEREOF WITH THE REACTION PRODUCT OF (A) AT LEAST ONE COPOLYMER ESSENTIALLY CONSISTING OF ABOUT 75 TO 95 MOL PERCENT OF VINYLIDENE CHLORIDE AND ABOUT 5 TO 25 MOL PERCENT OF AT LEAST ONE ACID MATERIAL SELECTED FROM THE GROUP CONSISTING OF A,B-UNSATURATED, ALIPHATIC CARBOXYLIC ACIDS AND THEIR ANHYDRIDES, AND (B) AT LEAST ONE POLYEPOXIDE IN AN AMOUNT SUCH AS TO PROVIDE ABOUT 0.01 TO 2.5 MOLS OF EPOXIDE GROUPS PER MOL OF CARBOXYL GROUPS PRESENT IN SAID COPOLYMER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |