US3194809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trifluoropropene-pyridine compounds and methods for their production
Assignee: Parke Davis and Co LLC
•
Filing: 1963-09-19
•
Granted: 1965-07-13
•
Expires: 1983-09-19
Abstract
No abstract record available.
Inventors
- 👤 John R Dice
- 👤 Martin L Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:27
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
3,3,3-TRIFLUORO-1-PROPENE COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
5 words
3,3,3-TRIFLUORO-1-PROPENE COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US2727899A
Cited
US2863802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |