US2974149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation of ethers with polychloroolefins
Assignee: Universal Oil Products Co
•
Filing: 1957-11-21
•
Granted: 1961-03-07
•
Expires: 1977-11-21
Abstract
No abstract record available.
Inventors
- 👤 Schmerling Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:19
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/10; C07D319/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-(2-CHLOROVINYL)-1,4-DIOXANE, 2-(2-DICHLOROVINYL)-1,4-DIOXANE, 2-(1,2-DICHLOROPROPENYL)-1,4-DIOXANE, 2-(2-CHLOROPROPENYL)-1,4-DIOXANE, 2-(2-CHLORO-2-FLUOROVINYL)-1,4DIOXANE, AND 2-(2-CHLORO-3,3-DIFLUOROPROPENYL)-1,4-DIOXANE.
Claim 2
Dependent Claim
15 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-(2-CHLOROVINYL)-1,4-DIOXANE, 2-(2-DICHLOROVINYL)-1,4-DIOXANE, 2-(1,2-DICHLOROPROPENYL)-1,4-DIOXANE, 2-(2-CHLOROPROPENYL)-1,4-DIOXANE, 2-(2-CHLORO-2-FLUOROVINYL)-1,4DIOXANE, AND 2-(2-CHLORO-3,3-DIFLUOROPROPENYL)-1,4-DIOXANE.
References Cited (Backward Citations)
US2433844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |