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Primary Examiner: Padgett, Benjamin R.
Assistant Examiner: Gluck, Irwin
Attorney: Feeney, Jr.; Edward J., Rasmussen; David G., Peterson; Kevin R.

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Title: Ball point pen, ink, and its eradicator system

Abstract: Disclosed is a ball point ink pen, its ink and its eradicator. The ink is carried at one end of the pen and the eradicator portion is carried at the other. If an error is made, the pen can be reversed and the eradicator used to neutralize the ink. The ink also neutralizes the eradicator so that when one rewrites with the same ink, any remaining eradicator on the paper is neutralized and the original ink acts as fresh ink.

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Other info:

Inventors: Lin, An-Chung R. (Fairport, NY, US)

Application Number: 960360
Filing Date: 1978-11-13
Publication_date: 1980-10-14
Assignee: Burroughs Corporation (Detroit, MI)
Primary Class(es): 106/31.23 106/31.27, 252/183.13, 401/17, 401/18, 401/21, 401/34
Other Classes:
US Patent Ref:

2092152	Jan, 1936	Bonkowski	401/18.
3941488	Mar, 1976	Maxwell	401/17.
3945837	Mar, 1976	Miyata et al.	106/22.
4101329	Jul, 1978	Loock	106/22.
4162164	Jul, 1979	Lin	106/22.

Other Refs: Other References: Ellis, C., "Printing Inks," Reinhold, 1940, p. 351.