Us2109400 patent testosterone?

Do you mean US patent number 2,109,400? I don’t want to guess what it covers. I can help determine whether it’s about testosterone, but I’ll need to check the patent text.

What I can do for you:
- If you want me to look it up, I can summarize the title, inventors, assignee, abstract, and key claims to see if it mentions testosterone.
- If you’d rather check yourself, here’s how:
1) Go to Google Patents (patents.google.com) and search “US2109400”.
2) Open the patent page and note the title, inventors, and assignee.
3) Read the abstract and, if needed, search within the document for the word “testosterone” (or related terms like “testosterone ester,” “androgen,” etc.).
4) Check the claims to see what is actually claimed (e.g., a method, a compound, a derivative, or a use).

If you’d like, paste the patent text or a link here and I’ll quickly tell you whether it covers testosterone and give a plain-language summary.