Dating antiques by patent number two months of dating
I have an end table with "1863" stamped in white under the shelf, and a three drawer dressed stamped with "1700" in black on the back. Examine your furniture for markings or labels that identify the manufacturer, or a lot or patent number.
Patent searchers, especially inventors who need to thoroughly search the entire realm of patents to ensure their idea hasn’t already been patented, have more limited options available electronically.
As part of the reforms, English patents granted between 1617 and 30 September 1852 were identified from the Rolls, sorted into chronological order and then numbered in a single continuous sequence.