US3347901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfluorinated monomers
Assignee: EIDP Inc
•
Filing: 1966-08-02
•
Granted: 1967-10-17
•
Expires: 1986-08-02
Abstract
No abstract record available.
Inventors
- 👤 Fritz Charles Gerhard
- 👤 Warnell Joseph Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:41
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/065; C08G73/0655
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A PERFLUOROETHER DINITRILE HAVING A STRUCTURE;
Claim 2
Dependent Claim
6 words
A PERFLUOROETHER DINITRILE HAVING A STRUCTURE;
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |