Patent dating guide
The only way to gain an appreciation of the character of Old Wedgwood is to examine it, with the eye and with the finger tips.
Below are the ovals from different eras for professional model, top of the line, and inexpensive store model bats. HILLERICH & SON" with "- MADE BY -" above it, and "LOUISVILLE SLUGGER" at the very top. (pictured is catalog designation 125) "LOUISVILLE SLUGGER" is at the very top of the oval. In 1973 the Registered Trademark is added over the "d" in Powerized (not shown here) Outside and below the oval "REG. A breakdown of the different labels will be added soon. "LOUISVILLE SLUGGER" is at the bottom to the left of the ampersand, & "MADE IN U. The highest grade of wood is reserved for all 125 baseball bats. 40 was the highest quality line of baseball bats in the Louisville Slugger catalog. Louisville slugger began using model numbers on the knob in 1943 then moving the model number to the barrel in 1977. They introduced the "Powerized and Bone Rubbed" logo for the 1932 season and in 19 you will see it stamped "Powerized and Oil Tempered" which usually is a very light heat foil type print.By matching the samples with the logo on your bat, you could approximately date your Louisville Slugger to that era. This 1980-2012 bat labeling period is generalized to the use of this style center brand. This H&B logo center brand is identical to the previous label but the Registered Trademark symbol is added to the right of the "H&B" logo. he "Powerized" process was patented by the Hillerich & Bradsby Co. Beginning in 1935 until present, they go with just "Powerized" The Powerized" process is to harden the surface of the bat much like the bone rubbed finish of the 1920's.Variations in branding for 125 professional model bats could narrow down the years, as described by visiting the link provided. Labels can be can be narrowed down to smaller eras and I will add the info in the near future. The 1983-1989 period is the same as the 1980-1983 center brand but the oval was made smaller, and measures 3 1/2" across Thirty-three years since their last change, Louisville Slugger redesigns their logo. The letters "LS" is squeezed in between the outer and inner boarders, at the top. HILLERERICH & BRADSBY CO." is at the top; the catalog number above "H&B" followed by "MADE IN U. Federal Land Patents offer researchers a source of information on the initial transfer of land titles from the Federal government to individuals.In addition to verifying title transfer, this information will allow the researcher to associate an individual (Patentee, Assignee, Warrantee, Widow, or Heir) with a specific location (Legal Land Description) and time (Issue Date).