US2548435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of aromatic hydrocarbons
Assignee: Hercules Powder Co
•
Filing: 1946-08-01
•
Granted: 1951-04-10
•
Expires: 1966-08-01
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Lorand
- 👤 John E Reese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:37
CPC Classifications
C; C07; C07C; C07C409/00; C07C409/02; C07C409/04; C07C409/08; C07C409/12; C07C407/00; C07C409/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
THE PROCESS OF OXIDIZING AN ALKYL-SUBSTITUTED AROMATIC ORGANIC COMPOUND HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
13 words
THE PROCESS OF OXIDIZING AN ALKYL-SUBSTITUTED AROMATIC ORGANIC COMPOUND HAVING THE STRUCTURAL FORMULA
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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |