US2500385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing norcamphor
Assignee: Universal Oil Products Co
•
Filing: 1945-12-22
•
Granted: 1950-03-14
•
Expires: 1965-12-22
Abstract
No abstract record available.
Inventors
- 👤 Schmerling Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:42
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/687; C07C49/693; C07C17/00; C07C17/26; C07C17/30; C07C45/00; C07C45/42; C07C45/61; C07C45/63
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PROCESS FOR PRODUCING NORCAMPHOR WHICH COMPRISES REACTING BICYCLO-2,2,1)-2-HEPTENE WITH CHLORINE TO PRODUCE 2-CHLOROBICYCLO-(2,2,1)-2HEPTENE, AND HYDROLYZING AND CHLOROBICYCLOPHEPTENE TO FORM NORCAMPHOR.
Claim 2
Dependent Claim
21 words
A PROCESS FOR PRODUCING NORCAMPHOR WHICH COMPRISES REACTING BICYCLO-2,2,1)-2-HEPTENE WITH CHLORINE TO PRODUCE 2-CHLOROBICYCLO-(2,2,1)-2HEPTENE, AND HYDROLYZING AND CHLOROBICYCLOPHEPTENE TO FORM NORCAMPHOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |