In 1851 Elias Howe, the man who invented the sewing machine, received a patent for the “Automatic Continuous Clothes Closure”. He however didn’t market that product.
In 1893 Whitcomb Judson started a company ‘Universal Fastener Company’ and began marketing the zipper whose debut was at the Chicago World’s Fair.
So beware of using the zipper in your writings before the 1900’s. Readers might know and will question little facts like this.