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When an invention is made, the inventor has three possible 【C1】______ of ac
When an invention is made, the inventor has three possible 【C1】______ of ac
游客
2025-04-26
32
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问题
When an invention is made, the inventor has three possible 【C1】______ of action open to him: he can give the invention to file world by publishing it, keep the idea 【C2】______ , or patent it.
A 【C3】______ patent is the result of a bargain 【C4】______ between an inventor and the state, but the inventor gets a limited period of monopoly and publishes full details of his invention to the public after that period 【C5】______ .
Only in the most exceptional circumstances 【C6】______ the lifespan of a patent 【C7】______ to alter this normal process of events
The longest extension ever 【C8】______ was to Georges Valensi; his 1939 patent for color TV receiver circuit was extended until 1971 because for most of the patent’s normal life there was no color TV to 【C9】______ and thus no hope for reward for the invention.
Because a patent remains permanently 【C10】______ after it has terminated, the shelves of the library attached to the 【C11】______ office contain details of literally millions of ideas that are free for anyone to use and, if 【C12】______ than half a century, sometimes even re-patent. Indeed, patent experts often advise anyone 【C13】______ to avoid the high cost of conducting a search through【C14】______ patents that the one sure way of violation of any other inventor’s right is to plagiarize a dead patent. Likewise, because publication of an idea in any other form【C15】______ invalidates further patents on that idea, it is traditionally 【C16】______ to take ideas from other areas of print. Much modem technological advance is【C17】______ on these presumptions of legal security.
Anyone closely 【C18】______ in patents and inventions soon learns that most "new" ideas are, in fact, as old as the hills. It is theft reduction to commercial practice, either through necessity or dedication, or through the availability of new technology,【C19】______ makes news and money. The basic patent for the theory for magnetic recording dates back to 1886. Many of the original ideas behind television originate 【C20】______ the late 19th and early 20th century. Even the Volkswagen rear engine car was anticipated by a 1904 patent for a cart with the horse at the rear. [br] 【C8】______
选项
A、granted
B、granting
C、to grant
D、being granted
答案
A
解析
类似于58题的用法,也是指“被批准的”最长的时间延长,grant的过去分词granted修饰extension。
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