2 ms·

Here you go https://tsdr.uspto.gov/#caseNumber=77580336&caseType=SERIAL_NO&searchType=statusSearch https://tsdr.uspto.gov/#caseNumber=77580336&caseType=SERIAL_.

by gpm 6y ago

Here you go https://tsdr.uspto.gov/#caseNumber=77580336&caseType=SERIAL_NO&searchType=statusSearch https://tsdr.uspto.gov/#caseNumber=77580336&caseType=SERIAL_... (found via Wikipedia sources)