Granted Patent
Utility
US 6,538,158
· Confirmation No. 3796
PROCESS FOR PREPARING 1,4-DIAMINONAPHTHALENE AND/OR 1,5-DIAMINONAPHTHALENE
|
⬇ PDF
|
Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2006-11-21 | EBCC.AD |
Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update | 1 | View | |
| 2006-06-07 | EBCC.AD |
Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update | 1 | View | |
| 2002-05-03 | TRNA |
Transmittal of New Application | 2 | View | |
| 2002-05-03 | SPEC |
Specification | 11 | View | |
| 2002-05-03 | CLM |
Claims | 3 | View | |
| 2002-05-03 | ABST |
Abstract | 1 | View |
Inventors
Joachim Zechlin
Dusseldorf, GERMANY
Lothar Duda
Dusseldorf, GERMANY
Gerhard Wegener
Mettmann, GERMANY
Andreas Hoffmann
Koln, GERMANY
Bodo Temme
League City, TX
Attorneys & Agents of Record
Classification
USPC
564/405
C07C17/12
C07C17/395
C07C209/10
C07C263/10
C07C25/22
C07C265/14
C07C211/58
Prosecution
- Examiner
- BARTS, SAMUEL A
- Art Unit
- 1621
- Customer No.
- 157
- Docket No.
- MO6913/LEA 35,064
- Confirmation No.
- 3796
Foreign Priority
10122234.3
·
2001-05-08
·
GERMANY
Publication
- Pub. No.
- US20020198408A1
- Pub. Date
- 2002-12-26
Patent Term Adjustment
-5days
No related applications found.
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2002-09-04
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
- Patent No.
- US 6,538,158
- App. No.
- 10/138,542
- Filed
- 2002-05-03
- Granted
- 2003-03-25
- Pub. No.
- US20020198408A1
- Examiner
- BARTS, SAMUEL A
- Art Unit
- 1621
- PTA
- -5 days
External Links