Couldn't load this record
The USPTO API returned an error (HTTP 429) — please try again shortly.
Granted Patent
Utility
US 6,548,692
· Confirmation No. 1699
METHOD FOR PREPARING 1,2-DIBROMO-2,4-DICYANOBUTANE
Patented Case
View Patent ↗
No downloadable documents found — record may not be publicly available.
Inventors
Satish C. Nigam
Hilliard, OH
Cletis Stiffler
Grove City, OH
Attorneys & Agents of Record
Classification
USPC
558/461
C07C253/30
C07C255/10
Prosecution
- Examiner
- SHIAO, REI TSANG
- Art Unit
- 1626
- Docket No.
- FDN-2732
- Confirmation No.
- 1699
Patent Term Adjustment
0days
No related applications found.
from
ISP INVESTMENTS INC.
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2015-08-14
ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC,
AQUALON COMPANY,
ISP INVESTMENTS INC.,
HERCULES INCORPORATED
RELEASE OF PATENT SECURITY AGREEMENT
Recorded 2013-03-18
PATENT RELEASE
Recorded 2011-09-19
from
AQUALON COMPANY,
ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC,
HERCULES INCORPORATED,
ISP INVESTMENT INC.
SECURITY AGREEMENT
Recorded 2011-09-16
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2002-04-25
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 6,548,692
- App. No.
- 10/132,022
- Filed
- 2002-04-25
- Granted
- 2003-04-15
- Examiner
- SHIAO, REI TSANG
- Art Unit
- 1626
- PTA
- 0 days
External Links