US3199959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor for preparation of carboxylic aromatic acids
Assignee: Sunoco Inc
•
Filing: 1962-10-24
•
Granted: 1965-08-10
•
Expires: 1982-10-24
Abstract
No abstract record available.
Inventors
- 👤 James F Dempsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:26
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/255; C07C51/265; B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/18; B01J; B01J19/00; B01J19/0006; B01J19/0013; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A REACTOR FOR THE PREPARATION OF CARBOXYLIC AROMATIC ACIDS WHICH COMPRISES A REACTOR SHELL, AN OXYGEN INLET CONDUIT IN THE LOWER PORTION OF SAID SHELL, AN OXYGEN OULET CONDUIT IN THE UPPER PORTION OF SAID SHELL, A PLURALITY OF VERTICALLY SPACED APART BUBBLE TRAYS BETWEEN SAID INLET AND SAID OUTLET, MEANS FOR ADMITTING A CHARGE LIQUID TO THE UPPERMOST OF SAID BUBBLE TRAYS, MEANS INCLUDING A DOWNPIPE FOR CONDUCTING SAID LIQUID CHARGE FROM EACH OF SAID TRAYS TO THE TRAY IMMEDIATELY THEREBELOW, MEANS FOR REMOVING SAID LIQUID, TOGETHER WITH REACTION PRODUCTS, FROM THE LOWERMOST TRAY, AND HEAT EXCHANGE MEANS FOR REMOVING HEAT FROM VAPORS RISING FROM A LOWER TRAY TO AN UPPER TRAY, SAID HEAT EXCHANGE MEANS BEING POSITIONED BENEATH SAID UPPER TRAY AND ABOVE THE
Claim 2
Dependent Claim
126 words
A REACTOR FOR THE PREPARATION OF CARBOXYLIC AROMATIC ACIDS WHICH COMPRISES A REACTOR SHELL, AN OXYGEN INLET CONDUIT IN THE LOWER PORTION OF SAID SHELL, AN OXYGEN OULET CONDUIT IN THE UPPER PORTION OF SAID SHELL, A PLURALITY OF VERTICALLY SPACED APART BUBBLE TRAYS BETWEEN SAID INLET AND SAID OUTLET, MEANS FOR ADMITTING A CHARGE LIQUID TO THE UPPERMOST OF SAID BUBBLE TRAYS, MEANS INCLUDING A DOWNPIPE FOR CONDUCTING SAID LIQUID CHARGE FROM EACH OF SAID TRAYS TO THE TRAY IMMEDIATELY THEREBELOW, MEANS FOR REMOVING SAID LIQUID, TOGETHER WITH REACTION PRODUCTS, FROM THE LOWERMOST TRAY, AND HEAT EXCHANGE MEANS FOR REMOVING HEAT FROM VAPORS RISING FROM A LOWER TRAY TO AN UPPER TRAY, SAID HEAT EXCHANGE MEANS BEING POSITIONED BENEATH SAID UPPER TRAY AND ABOVE THE
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |