Patent File History Inventory Lookup
Check our patent file history inventory to see if the ones you need are available today via download. You should search by both patent and serial numbers.
Enter File Histories (One per line, no blank lines):
Format: 2 Character Country Code followed by Patent/Application Number
Example List:
US6661779
US6503485
08/589761
08/918564
No country code defaults to US (5551234 = US5551234)
No document kind codes (A1, B1, etc)
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