US3136744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorothiranes, their preparation and hompolymers thereof
Assignee: EIDP Inc
•
Filing: 1961-04-14
•
Granted: 1964-06-09
•
Expires: 1981-04-14
Abstract
No abstract record available.
Inventors
- 👤 Frank C Mcgrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:08
CPC Classifications
C; C07; C07D; C07D331/00; C07D331/02; C07D339/00; C08; C08G; C08G75/00; C08G75/02; C08G75/06; C08G75/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
5 words
A 2,2-DIFUOROTHIIRANE OF THE FROMULA
Claim 2
Dependent Claim
5 words
A 2,2-DIFUOROTHIIRANE OF THE FROMULA
Claim 3
Dependent Claim
7 words
HONOPOLYMERS OF THE 2,2-DIFLUOROTHIIRANES OF THE FORMULA
Claim 4
Dependent Claim
7 words
HONOPOLYMERS OF THE 2,2-DIFLUOROTHIIRANES OF THE FORMULA
Claim 5
Dependent Claim
10 words
POLYMERS OF CLAIM 6 IN THE FORM OF SELF-SUPPORTING FILMS.
References Cited (Backward Citations)
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US2594272A
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GB672720A
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US2700686A
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US2724719A
Cited
US2980695A
Cited
US2965651A
Cited
US2992210A
Cited
US2996484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |