Japanese Patent JP-B-57-35856

Is this a patent?

JP is Japanese, 5735856 is WeChat official account, and B stands for publicity or announcement.

In Japan, the definition of patent suffix is as follows:

A- the public specification of an application for a patent for invention that has not been substantially examined and has not been granted a patent right.

B 1 -? Patent announcement specification

B2- Patent announcement specification, that is, the application disclosure specification that has been published in advance.

The public specification of the application for utility model without substantive examination and patent right.

Y 1 -? A patent for utility model that has been granted a patent right after substantive examination.

Y2 -? Specification for public utility model (the specification for public utility model application has been published in advance)

S -? Authorized design

D -? Design without the consent of a third party