Re: 3rd series single six engine

Posted by Owen_Dyneto On 2017/5/18 8:31:59

Back for a moment to Harry Ricardo, just a short time after your 3rd series Six Harry applied for another patent on L-head combustion chambers. It's one of the numbers that owners of 23rd Series and earlier cars will find on their patent plates, 2,076,593. This patent was assigned to Harry Ricardo so Packard took a license from him to make use of the technology. At about the same time Alexander Pope applied for a patent on L-head combustion chambers, his was granted and assigned to Waukesha Motors.

Ricardo, 2,076,593. Applied for 7/17/28, granted 4/13/37
A. Pope, 2,076,590. Applied for 8/22/28, granted 4/13/37

I suspect the exceptionally long interval between filing and granting was due to negotiating over overlapping claims, maybe even a bit of skullduggery between the two.