US3250806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorocarbon ethers of tetrafluoroethylene epoxide
Assignee: EIDP Inc
•
Filing: 1962-04-05
•
Granted: 1966-05-10
•
Expires: 1982-04-05
Abstract
No abstract record available.
Inventors
- 👤 Warnell Joseph Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:42
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/002; C08G65/005; C08G65/007; C07; C07C; C07C59/00; C07C59/125; C07C59/135; C08G65/02; C08G65/04; C08G65/22; C08G65/223; C08G65/226
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
6 words
A FLUOROCARBON ETHER HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
A FLUOROCARBON ETHER HAVING THE FORMULA
Claim 3
Dependent Claim
6 words
A FLUOROCARBON ETHER HAVING THE FORMULA
Claim 4
Dependent Claim
6 words
A FLUOROCARBON ETHER HAVING THE FORMULA
Claim 5
Dependent Claim
6 words
A GLUOROCARBON ETHER HAVING THE FORMULA
Claim 6
Dependent Claim
6 words
A GLUOROCARBON ETHER HAVING THE FORMULA
Claim 7
Dependent Claim
6 words
A FLUOROCARBON ETHER HAVING THE FORMULA
Claim 8
Dependent Claim
6 words
A FLUOROCARBON ETHER HAVING THE FORMULA
Claim 9
Dependent Claim
6 words
THE FLUOROCARBON ETHER HAVING THE FORMULA
Claim 10
Dependent Claim
6 words
THE FLUOROCARBON ETHER HAVING 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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |