Granted Patent
Utility
US 6,575,438
· Confirmation No. 2289
STEPPED DOWNCOMER APPARATUS AND VAPOR-LIQUID CONTACT APPARATUS WITH SAME
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2001-06-13 | TRNA |
Transmittal of New Application | 1 | View | |
| 2001-06-13 | SPEC |
Specification | 29 | View | |
| 2001-06-13 | CLM |
Claims | 8 | View | |
| 2001-06-13 | ABST |
Abstract | 1 | View | |
| 2001-06-13 | DRW |
Drawings-only black and white line drawings | 14 | View | |
| 2001-06-13 | LET. |
Miscellaneous Incoming Letter | 1 | View |
Inventors
Attorneys & Agents of Record
Classification
USPC
261/114.1
Prosecution
- Examiner
- BUSHEY, CHARLES S
- Art Unit
- 1724
- Customer No.
- 441
- Docket No.
- 32791R002
- Confirmation No.
- 2289
Publication
- Pub. No.
- US20020190403A1
- Pub. Date
- 2002-12-19
Patent Term Adjustment
-368days
from
SULZER CHEMTECH AG.
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2020-08-12
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2003-11-10
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2001-10-09
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Quick Facts
- Patent No.
- US 6,575,438
- App. No.
- 09/878,909
- Filed
- 2001-06-13
- Granted
- 2003-06-10
- Pub. No.
- US20020190403A1
- Examiner
- BUSHEY, CHARLES S
- Art Unit
- 1724
- PTA
- -368 days
External Links