Cancelled & expired registration

Z-DUCT

Registration expired per USPTO on Jan 27, 2007

Status may change

Ready for a second act? Here's what the USPTO record shows.

USPTO status
Registration expired per USPTO on Jan 27, 2007 · code 900 (Expired)
Registration date
Apr 20, 1976
Filing date
Mar 5, 1975
Registration no.
1038163
Serial no.
73045829
Goods & services
DUCT ASSEMBLY HAVING A THERMAL TRANSFER SURFACE CONTAINED THEREIN DEFINING A PAIR OF ADJACENT FLUID FLOW PASSAGES
Owner as listed with the USPTO
  • DES CHAMPS LABORATORIES INCORPORATED
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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.

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