US3251817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylidene chloride copolymer coating compositions
Assignee: Dow Chemical Co
•
Filing: 1963-03-01
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Granted: 1966-05-17
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Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Harold G Hahn
- 👤 Rodger J Lapham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:59
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/052; C08J2427/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A MOISTURE-PROOF POLYMERIC COATING COMPOSITION CONSISTING ESSENTIALLY OF: (1) AN ESSENTIALLY HOMOGENEOUS COPOLYMER OF BETWEEN 85 AND 90 WEIGHT PERCENT VINYLIDENE CHLORIDE AND BETWEEN 15 AND 10 WEIGHT PERCENT ACRYLIC ACID, AND (2) BETWEEN ABOUT 3 AND 7 WEIGHT PERCENT BASED ON THE WEIGHT OF SAID COPOLYMER OF AN ACID REACTIVE POLYFUNCTIONAL CROSS-LINKING AGENT HAVING THE FORMULA:
Claim 2
Dependent Claim
57 words
A MOISTURE-PROOF POLYMERIC COATING COMPOSITION CONSISTING ESSENTIALLY OF: (1) AN ESSENTIALLY HOMOGENEOUS COPOLYMER OF BETWEEN 85 AND 90 WEIGHT PERCENT VINYLIDENE CHLORIDE AND BETWEEN 15 AND 10 WEIGHT PERCENT ACRYLIC ACID, AND (2) BETWEEN ABOUT 3 AND 7 WEIGHT PERCENT BASED ON THE WEIGHT OF SAID COPOLYMER OF AN ACID REACTIVE POLYFUNCTIONAL CROSS-LINKING AGENT HAVING THE FORMULA:
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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) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |