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For the Inventor, By the Inventor

Fort Erie, Canada

529900 Ontario Ltd.


USPTO Granted Patents = 1

Forward Citations = 47

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2 inventors (with patents filed for the assignee):

goldMedal Robert L Weckman (1 out of 2 patents)

silverMedal Frank W Doan (1 out of 1 patent)


1 patent:

1. 5020342 - Safety lock (1991-06-04),
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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#2 in Fort Erie

#133,892 in Canada

...
Fort Erie, Canada

529900 Ontario Ltd.

Forward Citations = 47

2 inventors:

goldMedal Robert L Weckman (1 out of 2 patents)

silverMedal Frank W Doan (1 out of 1 patent)

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