US3207730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers comprising a fluorinated quaternary salt of an amine-substituted acrylic acid ester
Assignee: 3M Co
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Filing: 1962-09-28
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Granted: 1965-09-21
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Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 Richard A Guenthner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:25
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F28/00; C08F8/00; C08F8/44; Y; Y10; Y10S; Y10S526/00; Y10S526/923; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A WATER MISCIBLE POLYMER HAVING, IN AN OCCURRENCE SUFFICIENT FOR WATER MISCIBILITY, RECURRING GROUPS OF THE FORMULA
Claim 2
Dependent Claim
17 words
A WATER MISCIBLE POLYMER HAVING, IN AN OCCURRENCE SUFFICIENT FOR WATER MISCIBILITY, RECURRING GROUPS OF THE FORMULA
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |