Timothy wroteThere one question like to ask of that if any padlock doesn’t have patent number are there a way to find it to get information on it. I know that if lucky you can find it by name of company but not all the time.
Warded locks like that are unlikely to have a utility patent because the mechanism and design date back to antiquity, however some manufacturers in the very late 1800’s and early 1900’s discovered the Design patent and tat is the most likely way of dating a particular style other than gettong an old catalog. Design patents are a little easier to search as I don’t think there have been one million issued yet. If you can find digital versions and look arond that time period luck may find you a little quicker. Good luck.
BBE.
ps. That shackle is typically called a Bull Ring shackle.
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