Patent US3879430A successfully refreshed from Google Patents.
US3879430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly fluorinated diglycidyl ethers
Assignee: United States Department of the Navy
•
Filing: 1973-09-13
•
Granted: 1975-04-22
•
Expires: 1993-09-13
Abstract
Abstract Fluorinated diglycidyl ethers having the formula WHEREIN RF is CF3(CF2)x for X from 2 to 10 are synthesized.
Inventors
- 👤 Jacques G O'rear
- 👤 James R Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:53
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
7 words
A FLUORINATED DIGLYCIDYL ETHER OF THE FORMULA
Claim 2
Dependent Claim
7 words
A FLUORINATED DIGLYCIDYL ETHER OF THE FORMULA
Claim 3
Dependent Claim
7 words
A fluorinated diglycidyl ether of the formula
Claim 4
Dependent Claim
7 words
A fluorinated diglycidyl ether of the formula
Claim 5
Dependent Claim
10 words
A diglycidyl ether according to claim 1 wherein x 2.
References Cited (Backward Citations)
US3707483A
Cited
US3706772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |