US3069396A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of polyfluorothioketone
Assignee: EIDP Inc
•
Filing: 1959-02-09
•
Granted: 1962-12-18
•
Expires: 1979-02-09
Abstract
No abstract record available.
Inventors
- 👤 William J Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:30
CPC Classifications
C; C07; C07D; C07D339/00; C08; C08G; C08G75/00; C08G75/02; C08G75/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A LINEAR HOMPOLYMER HAVING AT LEAST ABOUT 10 RECURRING MONOMERIC GROUPS OF A POLYFLUOROTHIOKETONE OF THE FORMULA
Claim 2
Dependent Claim
17 words
A LINEAR HOMPOLYMER HAVING AT LEAST ABOUT 10 RECURRING MONOMERIC GROUPS OF A POLYFLUOROTHIOKETONE OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |