US2826564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorinated acrylates and polymers
Assignee: 3M Co
•
Filing: 1957-02-15
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Granted: 1958-03-11
•
Expires: 1977-02-15
Abstract
No abstract record available.
Inventors
- 👤 Frank A Bovey
- 👤 Joseph F Abere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:13
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28; C07; C07C; C07C69/00; C07C69/62; C07C69/65; C07C69/653
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
13 words
AS NEW AND USEFUL COMPOUNDS, THE NORMAL 3-PERFLUOROALKOXY-1,1-DIHYDROPERFLUOROPROPYL ACRYLATE MONOMERS HAVING THE FORMULA:
Claim 2
Dependent Claim
13 words
AS NEW AND USEFUL COMPOUNDS, THE NORMAL 3-PERFLUOROALKOXY-1,1-DIHYDROPERFLUOROPROPYL ACRYLATE MONOMERS HAVING THE FORMULA:
Claim 3
Dependent Claim
9 words
HOMOPOLYMERS OF THE ACRLYLATE MONOMERS SPECIFIED IN CLAIM 1.
Claim 4
Dependent Claim
20 words
POLYMERS HAVING A SKELETAL CHAIN CONTAINING, IN MAJOR PROPORTION BY WEIGHT, FLUORINATED ALKOXY ACRYLATE ESTER UNITS INDICATED BY THE FORMULA:
Claim 5
Dependent Claim
20 words
POLYMERS HAVING A SKELETAL CHAIN CONTAINING, IN MAJOR PROPORTION BY WEIGHT, FLUORINATED ALKOXY ACRYLATE ESTER UNITS INDICATED BY 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) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |