Research/Patents/US 4953465
US 4953465

FLEXIBLE MINE CASE

Assignee

Filed

Oct 31, 1963

Granted

Sep 4, 1990

Location

Abstract

A mine has a flexible casing which can be fabricated in much the same way at a tubeless tire of modern construction is made. The mine case when uninflated is flexible and capable of being folded into a considerably smaller space than that occupied by a rigid case thus facilitating ease of shipment, but when loaded and inflated it is rigid. Being a collapsible vessel, however, the flexible mine case loses its identity as a straight cylindrical form when planted underwater, and becomes hard to distinguish from rocks, sponge, coral, or other bottom or sea growths.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Oct 28, 1981

Rescinded

Apr 5, 1990

Duration

8 years, 5 months

Back to patent indexSource: USPTO 35 USC §181 secrecy order records