Sticky bomb Sticky bomb The grenade, hand, anti-tank No. 74, commonly known as the S.T. grenade or sticky bomb, was a British hand grenade designed and produced during the Second World War. The grenade was one of a number of anti-tank weapons developed for use by the British Army and Home Guard as an "ad hoc" solution to a lack of sufficient anti-tank guns in the aftermath of the Dunkirk evacuation. Designed by a team from MIR(c) including Major Millis Jefferis and Stuart Macrae, the grenade consisted of a glass sphere containing an explosive made of nitroglycerin and additives (this added stability
Term of patent in the United States patents in the U.S., since the patent term now depends on the priority date, not the issue date. Design patents have a shorter term than utility patents. Design patents filed on or after May 13, 2015 have a term of 15 years from issuance. Design patents filed prior to May 13, 2015 have a term of 14 years from issuance. The original patent term under the 1790 Patent Act was decided individually for each patent, but "not exceeding fourteen years". The 1836 Patent Act (5 Stat. 117, 119, 5) provided (in addition to the fourteen-year term) an extension "for the