Cancelled & expired registration
KEN THIN
Registration cancelled per USPTO on Feb 10, 2001
Status may changeReady for a second act? Here's what the USPTO record shows.
- USPTO status
- Registration cancelled per USPTO on Feb 10, 2001 · code 710 (Cancelled, Section 8)
- Registration date
- Jan 22, 1980
- Filing date
- Mar 1, 1978
- Registration no.
- 1129418
- Serial no.
- 73160475
- Classes
- Class 1: Chemicals
- Goods & services
- CHEMICAL COMPOSITION FOR USE IN CONNECTION WITH WELL DRILLING SUCH AS OIL, GAS AND NATURAL RESOURCE WELLS-NAMELY, AN ADDITIVE FOR THE WELL FLUID DURING DRILLING, COMPLETION OR WORK-OVER
- Owner as listed with the USPTO
- HALLIBURTON COMPANY
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Status may change. The USPTO can reinstate a cancelled or expired registration, for example on a petition filed within 6 months, so this record could change. We re-check, but always verify the current status in TSDR.