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Patent US3245968A successfully refreshed from Google Patents.
US3245968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linking polymers with a chromium coordination comoplex of fluorine or chlorinesubstituted aliphatic carboxylic acid
Assignee: 3M Co
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Filing: 1961-12-20
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Granted: 1966-04-12
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Expires: 1981-12-20
Abstract
No abstract record available.
Inventors
- 👤 Dipner Charles David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:14
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A COMPOSITION OF MATTER COMPRISING A LINEAR POLYMER OF AN ETHYLENICALLY UNSATURATED OLEFIN OR A HALOGEN SUBSTITUTED OLEFIN CONTAINING A CHROMIUM COORDINATION COMPLEX OF A FLUORINE OR CHLORINE SUBSTITUTED ALIPHATIC CARBOXYLIC ACID UNIFORMLY DISPERSED AND INTERMINGLED THROUGHOUT THE POLYMER.
Claim 2
Dependent Claim
39 words
A COMPOSITION OF MATTER COMPRISING A LINEAR POLYMER OF AN ETHYLENICALLY UNSATURATED OLEFIN OR A HALOGEN SUBSTITUTED OLEFIN CONTAINING A CHROMIUM COORDINATION COMPLEX OF A FLUORINE OR CHLORINE SUBSTITUTED ALIPHATIC CARBOXYLIC ACID UNIFORMLY DISPERSED AND INTERMINGLED THROUGHOUT THE POLYMER.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |