Trailer tongue wheel chock and support
Patent 5046587 Issued on September 10, 1991. Estimated Expiration Date: 
November 30, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 30, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1903690 2699628 2931463 3326508 3391760 InventorApplicationNo. 444046 filed on 11/30/1989US Classes:188/32, On ground248/346.11Coaster or caster cupExaminersPrimary: Oberleitner, Robert J.Assistant: Schwartz, Christopher P. Attorney, Agent or FirmForeign Patent References
International ClassesB60T 003/00A47H 001/10 AbstractA wheel chock with a base, upwardly sloped ramps extending around the periphery of the base, and a receiver located inboard of the ramps for releasably retaining a wheel and supporting the load thereon. The ramps and receiver permit wheel approach around the entire periphery of the base. | |
