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

Ice spike

Patent 5924752 Issued on July 20, 1999. Estimated Expiration Date: Icon_subject May 30, 2017. 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

D299285

758196

816681

1274481

1346894

1583754

2278610

3752524

Spike tool
Patent #: 3981526
Issued on: 09/21/1976
Inventor: Lundqvist

Accessory serving as life saving aid
Patent #: 4002366
Issued on: 01/11/1977
Inventor: Hammes

More ...

Inventor

Application

No. 866486 filed on 05/30/1997

US Classes:

294/25, HAND AND FINGER ATTACHMENTS441/82For use over ice

Examiners

Primary: Cherry, Johnny D.

Attorney, Agent or Firm

International Class

B63C 009/32

Abstract

A safety device comprising an ice spike having a mounting piece strapped to the forearm of the wearer with a spike support plate attached to the mounting piece by a hinge. An opener is biased to position the spike support plate in an open position and the spike support plate is held in a closed position using a hook and loop fastener. When the spike support plate is in the open position, a spike attached to the spike support plate is positioned by a spring or the equivalent such that its pointed end points outwardly from the spike support plate. The ice spike provides a person who has fallen through a hole in the ice with a device capable of gripping the slippery edges of the hole such that the person can extricate himself from the hole.

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