A

Alpha Subclass

B

Basis of Class

C

Claim, Most Comprehensive

Claimed Disclosure

Class 1, Subclass 1

Classification Definitions Classification, Design Patents

Combination-Subcombination

Coordinate Subclass

Cross-Reference Design Discretionary Limiting Mandatory

Cross-Reference Art Collections Utility Design

D Defintions, Design Patents

Digests Digest Design

Disclosure Claimed Total Unclaimed

E

Effect as Basis for Class Electronic Search Systems Exclusion Notes

F

Field of Search

Foreign Patent Art Collection

G

Genus-Species Rule

H

Hierarchy Utility Design

Historical Placement

Hybrid Claim

I

Indented Subclasses

Index to the U.S. Patent Classification System

Industrial Designs International Patent Classification

L

Last Resort Only

Locarno International Classification Location Selection (for Searching)

M

Mainline Subclass

Mandatory Cross-Reference

Manual of Classification

Markush Claim

Miscellaneous Subclass Mixed Array

N

Non-Patent Literature

Notes Utility Classes - Search Notes, etc. Design Classes - Exclusion Notes, Search Notes

O

Order of Superiority, Claimed Invention

Orders, Classification

Original Designation Ornamental Designs

P

Patents Without Valid Classification

Placement Utility Patents Design Patents

S

Search Notes - Utility Patents Search Notes - Design Class

Selecting a Class

Subclass Schedule Hierarchy - Utility Class Subclass Schedule Hierarchy - Design Class

T

Theoretical Organization Utility Design

Total Disclosure

U

Unclaimed Disclosure

X

XR (Cross-Reference) Utility Patents Design Patents

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