US3196186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitration of toluene in the presence of an aromatic sulfonic acid
Assignee: Honeywell International Inc
•
Filing: 1964-02-18
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Granted: 1965-07-20
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Expires: 1984-02-18
Abstract
No abstract record available.
Inventors
- 👤 Allen W Sogn
- 👤 Joseph G Natoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:58
CPC Classifications
C; C07; C07C; C07C201/00; C07C201/06; C07C201/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
IN A PROCESS FOR THE NITRATION OF TOLUENE, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION IN THE PRESENCE OF AN AROMATIC SULFONIC ACID IN AN AMOUNT SUFFICIENT TO PRODUCE A PARA DIRECTIVE EFFECT.
Claim 2
Dependent Claim
34 words
IN A PROCESS FOR THE NITRATION OF TOLUENE, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION IN THE PRESENCE OF AN AROMATIC SULFONIC ACID IN AN AMOUNT SUFFICIENT TO PRODUCE A PARA DIRECTIVE EFFECT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |