We started out with three each of three different types of plants: one member of each set was given water that had been boiled on a gas stove, water that had been boiled in a microwave oven, or water that had not been boiled at all.
Drug patent protection: How long is long enough? A recent Senate committee hearing on Bill S-17, Parliament's effort to comply with international trade rules by extending pharmaceutical patent protection to 20 years, inadvertently opened the door to a broader investigation of the inner workings of the country's pharmaceutical patent legislation.
Because the law in the US changed, it depends on when the work was originally created. Works created after 1 January 1978 are protected for the creator's lifetime plus 70 years after death; before this is was for less than 30 years, but could be extended.on't make assumptions based on quick calculations from the time of someone's death; copyright may have been extended (the classic example here is the Peter Pan book). Go to Full Artist's Copyright FAQ.