DoorButler® Patents
All proprietary to Ricardo Alonso and authorized to RA Products Co., Inc. Seeking WPO Partnerships.
|
Issue Date |
Ser. No. |
Type |
Title and Description |
|
01-Sep-98 |
Trademark |
Door Butler® |
|
|
03-Nov-98 |
Utility Patent |
Reinforcement Basal Plate For Reciprocating Operative Device |
|
|
14-Jul-98 |
Design Patent |
Checking Mechanism For Reciprocating Devices Including Door Closer Systems |
|
|
21-Sep-99 |
CIP Patent |
Checking Mechanism For Reciprocative Devices |
|
|
07-Mar-00 |
Divisional Patent |
Checking Mechanisms With Variable Plane Trigger Plates |
|
|
23-May-00 |
Design Patent |
Checking Mechanism With A Curvature Trigger Appendage For Door Closers |
|
|
30-May-00 |
Design Patent |
Checking Mechanism For Reciprocative Devices Including Door Closers |
|
|
04-Jun-02 |
Utility Patent |
Spring Assembly Causing Towards Any Opened Position With Reciprocative Door Closer Devices |
|
|
04-Nov-03 |
Utility Patent |
Damper Assembly That Opts To Open Doors For Usage With Reciprocating Door Closer Devices |
|
|
09-Mar-04 |
10/797396 | Utility Pat Pend |
Magnetism To Control Compressive Friction Checks For Rods Including Door Closers |
|
|
Not Pat Pend |
Linking Compressive Friction Checks For Bi-Directional Control By Tinsel Rod Strength |
|
|
|
Not Pat Pend |
US Pats & Pats Pend.: US.D395,995; US.D425,776; US.D425,399; US.5,829,098; US.5,953,789; US.6,032,331; US.6,397,431; US.6,640,387 . Door Butler®; The RedThing™; Charlie™; MagChek™; Premier™; Ultra™; Retro™; the reddish colored hold-open tab; and others are trademarks of R.A. Products Co. Inc., Denver, CO USA. Copyright © 1996-2005 RAPCO™ & Ricardo Alonso. Website by RAPCO