US2654658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for nitration of organic compounds
Assignee: MW Kellogg Co
•
Filing: 1948-04-02
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Granted: 1953-10-06
•
Expires: 1968-04-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Walton H Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:18
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; B01J8/1827; B01J19/00; B01J19/26; B01J8/005; B01J8/006; C; C07; C07B; C07B43/00; C07B43/02; C07C; C07C201/00; C07C201/06; C07C201/08; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00327; B01J2208/00336; B01J2208/0038; B01J2208/00513; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00081; B01J2219/00119; B01J2219/00121; B01J2219/00128; B01J2219/18; B01J2219/185; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1943; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
APPARATUS FOR REACTING NITRIC ACID WITH AN ORGANIC COMPOUND WHICH COMPRISES A REACTION VESSEL WHOSE INNER SURFACE IS SUSCEPTIBLE TO THE CORROSIVE ACTION OF HOT LIQUID NITRIC ACID, SAID VESSEL BEING ADAPTED TO CONTAIN A MASS OF FINELY DIVIDED SOLID MATERIAL, MEANS FOR INTRODUCING INTO SAID VESSEL AT A LOW POINT A GASEOUS STREAM FOR AERATING AND FLUIDIZING THE MASS OF FINELY DIVIDED SOLID MATERIAL, A GAS EXIT IN THE UPPER PORTION OF SAID REACTION VESSEL, A CONDUIT FOR INTRODUCING NITRIC ACID INTO THE VESSEL AND EXTENDING THROUGH THE WALL OF THE VESSEL AND TERMINATING AT A POINT SUBSTANTIALLY SPACED FROM THE INNER WALLS OF SAID VESSEL AND WITHIN THE PORTION OF SAID VESSEL OCCUPIED BY THE MASS OF FINELY DIVIDED SOLIDS IN A FLUIDIZED CONDITION, A JACKET SURROUNDING THAT PORTION OF SAID CONDUIT WITHIN SAID VES-
Claim 2
Dependent Claim
137 words
APPARATUS FOR REACTING NITRIC ACID WITH AN ORGANIC COMPOUND WHICH COMPRISES A REACTION VESSEL WHOSE INNER SURFACE IS SUSCEPTIBLE TO THE CORROSIVE ACTION OF HOT LIQUID NITRIC ACID, SAID VESSEL BEING ADAPTED TO CONTAIN A MASS OF FINELY DIVIDED SOLID MATERIAL, MEANS FOR INTRODUCING INTO SAID VESSEL AT A LOW POINT A GASEOUS STREAM FOR AERATING AND FLUIDIZING THE MASS OF FINELY DIVIDED SOLID MATERIAL, A GAS EXIT IN THE UPPER PORTION OF SAID REACTION VESSEL, A CONDUIT FOR INTRODUCING NITRIC ACID INTO THE VESSEL AND EXTENDING THROUGH THE WALL OF THE VESSEL AND TERMINATING AT A POINT SUBSTANTIALLY SPACED FROM THE INNER WALLS OF SAID VESSEL AND WITHIN THE PORTION OF SAID VESSEL OCCUPIED BY THE MASS OF FINELY DIVIDED SOLIDS IN A FLUIDIZED CONDITION, A JACKET SURROUNDING THAT PORTION OF SAID CONDUIT WITHIN SAID VES-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |