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Patent No. 3175912A: Synthetic Organic Chemical Preservative For Beer

Today in 1965, US Patent 3175912 A was issued, an invention of John B. Bockelmann and Frede B. Strandskov, assigned to Schaefer Brewing Co., for their “Synthetic Organic Chemical Preservative For Beer.” There’s no Abstract, although in the description it includes this summary:

The present invention relates generally to the control of micro-biological growth in finished packaged beer and ale with a synthetic, organic chemical preservative of the general formula:

Wherein R is an aliphatic hydrocarbon radical; X is either a hydrogen atom (H), an alkali metal, e.g., sodium (Na) and potassium (K), or an alkaline earth metal, e.g., cal cium (Ca); and 11 is an integer equal to the valence of X. More particularly, this invention is directed to the preservation of finished beer with a chemical preservative of the Formula 1 wherein R is saturated hydrocarbon chain. This invention also encompasses a mixture of compounds of Formula 1 as a chemical preservative for finished packaged beer and ale.

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