U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Extendable trailer for marine vehicles

Patent 4626162 Issued on December 2, 1986. Estimated Expiration Date: Icon_subject August 20, 2005. 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

2485793

2700480

2830717

2917194

3097755

3140003

3199695

3690490

3826391

Winch-operated extendable tongue for boat trailers and the like
Patent #: 4232990
Issued on: 11/11/1980
Inventor: Pierce

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Inventor

Application

No. 06/767560 filed on 08/20/1985

US Classes:

414/479, Means serves also to shift portion in at least one direction280/414.1, Boat carrying type414/477Load-receiving portion also shiftable longitudinally

Examiners

Primary: Spar, Robert J.
Assistant: Millman, Stuart J.

Attorney, Agent or Firm

International Classes

B60P 3/10 (20060101)
B60P 3/06 (20060101)

Abstract

An extendable boat trailer has a wheeled chassis adapted to be secured to a towing vehicle, and a boat supporting cradle movable rearwardly and forwardly on the chassis. The cradle includes a rear section which is engaged by a low friction conveyor in the form of rollers on the chassis for guiding the rearward and forward movement on the chassis, and a forward section extending upwardly and forwardly relative to the rear section. The forward section includes retaining members thereon that are cooperable with rollers on the chassis for engaging the rollers on the chassis when the cradle has been fully extended. A removable towing hitch is separable from the trailer, and the trailer includes only one winch.

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