US3326976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorinated gem-diamines and fluorinated gem-alkyldiamines and the process for theirpreparation
Assignee: EIDP Inc
•
Filing: 1963-12-11
•
Granted: 1967-06-20
•
Expires: 1983-12-11
Abstract
No abstract record available.
Inventors
- 👤 William J Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:51
CPC Classifications
C; C07; C07C; C07C243/00; C07C7/00; C07C7/20; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3802; C08G18/3814
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
34 words
PROCESS FOR PRODUCING A COMPOUND OF CLAIM 1 COMPRISING (1) CONTACTING AND REACTING, UNDER REFLUX CONDITIONS AND IN A REACTION MEDIUM INERT TO THE REACTANTS AND REACTION PRODUCTS, (A) AN ALKYLIDENIMINE OF THE FORMULA
References Cited (Backward Citations)
US3123621A
Cited
US3126412A
Cited
US3126413A
Cited
US2878287A
Cited
US2997501A
Cited
US3120524A
Cited
US3019261A
Cited
US3052723A
Cited
US3134816A
Cited
US3082254A
Cited
US3187020A
Cited
US3174992A
Cited
US3187044A
Cited
US3156724A
Cited
US3226439A
Cited
US3170948A
Cited
US3185693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |