Pyrex pattern dating
Pyrex (trademarked as PYREX) is a brand introduced by Corning Inc.
A clear borosilicate glass Pyrex measuring cup produced by Corning (right) and a clear tempered Pyrex soda-lime glass measuring cup produced by World Kitchen (left, differentiated by its different logo and bluish tint) Older clear-glass Pyrex manufactured by Corning, Arc International's Pyrex products, and Pyrex laboratory glassware is made of borosilicate glass.
Actually, we had a number of prior trade-marks ending in the letters ex.
One of the first commercial products to be sold under the new mark was a pie plate and in the interests of euphonism the letter r was inserted between pie and ex and the whole thing condensed to PYREX.
Not a long one, but a fun one…and I promise-no quiz at the end. Sunderland, England to be exact and the year is 1922.
It took me a few days longer than I had expected to write this but with the weather as beautiful as it has been we have been doing some spring cleaning as well as having friends over. A struggling glass company owned by the Jobling family is beginning to slip into bankruptcy.