John Evans' Sons, Inc.

Patent Applications and Registrations

Patent applications and USPTO patent grants for John Evans' Sons, Inc..The latest application filed is for "mounting system for mounting a coil spring to a window frame in a sash counterbalance system".

Company Profile

5.16.8

John Evans' Sons, Inc. - Lansdale PA US
John Evans' Sons, Inc. -
John Evans Sons, Inc - Lansdale PA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Trademarks

Patent Activity

Patent	Date
Mounting system for mounting a coil spring to a window frame in a sash counterbalance system Grant 10,941,599 - Kunz March 9, 2	2021-03-09
Mounting System for Mounting a Coil Spring to a Window Frame in a Sash Counterbalance System App 20200109584 - Kunz; John R.	2020-04-09
Counterbalance system for tilt-in window having a shielded brake shoe structure Grant 10,415,287 - Kunz Sept	2019-09-17
Ribbon coil spring anchor mount system for use in a window counterbalance assembly Grant 10,174,537 - Kunz J	2019-01-08
Versatile and economic anchor mount for a coil spring in a window counterbalance assembly Grant 10,081,972 - Kunz September 25, 2	2018-09-25
System and method for inhibiting window sash drift Grant 9,995,071 - Kunz June 12, 2	2018-06-12
Removable window sash system with integrated spring biased retainer Grant 9,845,626 - Kunz December 19, 2	2017-12-19
Brake Shoe and Stop that Interlock to Prevent Window Sash Drift During Use App 20160298369 - Kunz; John R.	2016-10-13
System and Method for Inhibiting Window Sash Drift App 20160298368 - Kunz; John R.	2016-10-13
Removable Window Sash System with Integrated Spring Biased Retainer App 20160245007 - Kunz; John R.	2016-08-25
Brake shoe with contact posts that increase brake strength and improve the interconnection between the brake shoe and a counterbalance spring of a tilt-in window Grant 9,371,677 - Kunz June 21, 2	2016-06-21
System and method for providing a more reliable interconnection between a spring and a brake shoe in the counterbalance system of a tilt-in window Grant 9,334,683 - Kunz May 10, 2	2016-05-10
System and method for retaining a proper interconnection between a tilt-post and a brake shoe in the counterbalance system of a tilt-in window Grant 8,640,383 - Kunz February 4, 2	2014-02-04
Shoeless curl spring counterbalance system for a tilt-in window Grant 6,860,066 - Kunz , et al. March 1, 2	2005-03-01
Counterbalance system for a tilt-in window Grant 6,857,228 - Kunz , et al. February 22, 2	2005-02-22

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