REMOVAL OF ARSENIC, ANTIMONY AND BISMUTH FROM MOLTEN COPPER WITH SULFU R HEXAFLUORIDE

Patented File - (Old Case Added for File Tracking Purposes) View Patent ↗

No downloadable documents found.

Classification

C22B15/006 Y02P10/146

Prosecution

Patent Term Adjustment

0days

KENNECOTT UTAH COPPER CORPORATION

from GAZELLE CORPORATION

CHANGE OF NAME JULY 5, 1989 - DE Recorded 1991-01-17

GAZELLE CORPORATION, C/O CT CORPORATION SYSTEMS, CORPORATION TRUST CENTER, 1209 ORANGE STREET, WILMINGTON, DE., 19801, A DE. CORP.

from RENNECOTT CORPORATION, A DE. CORP.

ASSIGNMENT OF ASSIGNORS INTEREST. Recorded 1989-07-11

KENNECOTT CORPORATION

from KENNECOTT COPPER CORPORATION

CHANGE OF NAME EFFECTIVE MAY 7, 1980. (SEE DOCUMENT FOR DETAILS) Recorded 1987-06-25

KENNECOTT MINING CORPORATION

from KENNECOTT CORPORATION

CHANGE OF NAME EFFECTIVE DEC. 31, 1986. (SEE DOCUMENT FOR DETAILS) Recorded 1987-06-25

KENNECOTT CORPORATION, 200 PUBLIC SQUARE, CLEVELAND OHIO, 44114, A CORP. OF DE.

from KENNECOTT MINING CORPORATION

ASSIGNMENT OF ASSIGNORS INTEREST. Recorded 1987-06-25

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.

Pre-filled with this application's details

Quick Facts

External Links