Date on which the trademark application was filed with TMO?

Collugel was applied on 23 August 1977.

Who is the trademark proprietor?

Trademark application was filed by BIOLOGICAL E.

Trademark application is filed under which trademark class?

Trademark application has been filed under following classes.
4

Trademark application is at what stage of trademark process?

As per IP India, trademark application is on the following stage:
Registered.

What is the Listed Application ID of the Trademark?

Listed application Id of Collugel is 328121.

Who filed the trademark on behalf of the proprietor?

Trademark attorney of the Collugel is Kayser & Co.

Is the Trademark word, color or device mark?

Collugel is a WORD as per IP India data.