USPC-to-IPC Reverse Concordance for IPC Subclass - F01N Gas-Flow Silencers Or Exhaust Apparatus For Machines Or Engines In General;Gas-Flow Silencers Or Exhaust Apparatus For Internal-Combustion Engines
PATENTS   
Patents > Guidance, Tools, and Manuals > Classification > International > USPC-to-IPC Reverse Concordance > Subclass
    Class Numbers & Titles   | Class Numbers Only   | USPC Index   | International   | HELP  
You are viewing a USPC-to-IPC Reverse Concordance Subclass.
USPC-to-IPC Reverse Concordance for
IPC Subclass - F01N
Gas-Flow Silencers Or Exhaust Apparatus For Machines Or Engines In General;Gas-Flow Silencers Or Exhaust Apparatus For Internal-Combustion Engines

Printable Version[PDF]
IPC GroupU.S. ClassU.S. Subclass
1  /  00 60 272
    60 322     -     324
    181 247
    181 253     -     255
    181 281
1  /  02 181 249     -     251
1  /  06 181 206
1  /  08 181 226
    181 230
    181 264     -     270
    181 272     -     276
    440 89J
1  /  10 181 252
1  /  12 181 279     -     280
1  /  14 181 220
    181 259     -     263
1  /  16 181 236     -     237
    181 271
    181 277     -     278
1  /  24 181 222
    181 256     -     258
3  /  00 60 274     -     277
    60 282     -     298
    181 221
    422 168
3  /  02 60 309
    60 311
    60 317     -     318
    60 320     -     321
    181 231
3  /  04 60 310
    440 88J
    440 89B     -     89D
    440 89H
3  /  06 55 454
    181 231
3  /  08 422 176
3  /  10 60 299     -     308
    422 173     -     175
3  /  20 422 105
    440 89C
3  /  28 422 107
    440 89H
5  /  00 60 281
    181 211     -     212
5  /  02 60 320
    165 51
    181 211
5  /  04 60 280
    60 319
13  /  00 181 225
    181 238     -     239
    181 242
    440 89E     -     89F
    440 89H     -     89J
13  /  02 181 232
13  /  08 181 227     -     228
    181 248
13  /  10 181 240
13  /  12 181 235
13  /  16 181 244     -     246
13  /  18 181 241
    181 243
    181 282
    228 176
99  /  00 181 225
    181 238
    181 242


This page is produced by the Office of Classification Support (Office of Patent Classification) for the Reference Tools Project.

Please send questions and comments to usptoinfo@uspto.gov .

KEY: e Biz=online business system fees=fees forms=formshelp=help laws and regs=laws/regulations definition=definition (glossary)

The Inventors Assistance Center is available to help you on patent matters.Send questions about USPTO programs and services to the USPTO Contact Center (UCC). You can suggest USPTO webpages or material you would like featured on this section by E-mail to the webmaster@uspto.gov. While we cannot promise to accommodate all requests, your suggestions will be considered and may lead to other improvements on the website.


|.HOME | SITE INDEX| SEARCH | eBUSINESS | HELP | PRIVACY POLICY 

This data is current as of April/2012