IP Library Patent Application 60513172
Patent Application Provisional
App. No. 60/513,172 · Confirmation No. 4288

Drive mechanism for a bi-fold wheelchair ramp

Provisional Application Expired
⬇ PDF
Code Description Pages PDF
2005-12-22 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2003-10-21 TRNA Transmittal of New Application 1 View
2003-10-21 SPEC Specification 8 View
2003-10-21 CLM Claims 1 View
2003-10-21 ABST Abstract 1 View
2003-10-21 DRW Drawings-only black and white line drawings 27 View
2003-10-21 APPENDIX Appendix to the specification 6 View
2003-10-21 WFEE Fee Worksheet (SB06) 1 View
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
App. No.
60/513,172
Filed
2003-10-21