US3013079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring halogenation of aromatic carbonyl compounds
Assignee: Individual
•
Filing: 1957-01-18
•
Granted: 1961-12-12
•
Expires: 1977-01-18
Abstract
No abstract record available.
Inventors
- 👤 Donald E Pearson
- 👤 Hughlan W Pope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:38
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/52; C07C47/55; C07C45/00; C07C45/61; C07C45/63; C07C49/00; C07C49/76; C07C49/80; C07C49/807; C07C49/813
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
THE METHOD COMPRISING REACTING (1) A LEWIS SALT OF A STRONG LEWIS ACID AND AN AROMATIC CARBONYL COMPOUND HAVING THE FORMULA,
Claim 2
Independent Claim
21 words
THE METHOD COMPRISING REACTING (1) A LEWIS SALT OF A STRONG LEWIS ACID AND AN AROMATIC CARBONYL COMPOUND HAVING THE FORMULA,
References Cited (Backward Citations)
US2773758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |