US3364259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of trimesoyl chloride
Assignee: Aerojet Rocketdyne Inc
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Filing: 1964-01-17
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Granted: 1968-01-16
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Expires: 1984-01-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Scigliano
- 👤 Herman H Weyland
- 👤 Edward E Hamel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:25
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/08; C07C; C07C51/00; C07C51/58; C07C51/60; C07D203/16; C07D203/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE METHOD OF PREPARING TRIMESOYL CHLORIDE WHICH COMPRISES REACTING TRIMESIC ACID WITH THIONYL CHLORIDE IN THE PRESENCE OF FROM ABOUT 0.1 TO ABOUT 1.5 WEIGHT PERCENT BASED ON THE WEIGHT OF THE TRIMESIC ACID, OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF FERRIC TRICHLORIDE AND FERRIC TRICHLORIDE-NITROMETHANE COMPLEX.
Claim 2
Independent Claim
49 words
THE METHOD OF PREPARING TRIMESOYL CHLORIDE WHICH COMPRISES REACTING TRIMESIC ACID WITH THIONYL CHLORIDE IN THE PRESENCE OF FROM ABOUT 0.1 TO ABOUT 1.5 WEIGHT PERCENT BASED ON THE WEIGHT OF THE TRIMESIC ACID, OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF FERRIC TRICHLORIDE AND FERRIC TRICHLORIDE-NITROMETHANE COMPLEX.
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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |