Patent Terms Glossary

Assignment

Definition:
A transfer of ownership of a patent application or patent from one entity to another. Record all assignments with the USPTO Assignment Services Division to maintain clear title to pending patents.

PCT

Definition:
Patent Cooperation Treaty - provides a mechanism by which an applicant can file a single application that, when certain requirements have been fulfilled, is equivalent to a regular national filing in each designated Contracting State.

Counterpart

Definition:
An application filed in a foreign patent office that is substantially similar to (like) the patent application filed with the USPTO and is based upon some or all of the same invention.

Blackout Period

Definition:
The period between the date the examining attorney approves the mark for publication and the date of issuance of the Notice of Allowance.

DTD

Definition:
Document type definition - a format specification file that accompanies documents prepared according to SGML (standard generalized markup language), including XML (extensible markup language).

Invention

Definition:
Any art or process (way of doing or making things), machine, manufacture, design, or composition of matter, or any new and useful improvement thereof, or any variety of plant, which is or may be patentable.

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