Calculating pen

Details Calculating pen Calculating pen

2006-04-25

2006-04-25

Nguyen, Tuan (Department: 3751)

Coating implements with material supply

Combined

C401S052000, C235S08700R, C235S08700R

Reexamination Certificate

active

07033102

ABSTRACT:
The present invention generally relates to a writing instrument that includes a means for calculating the result of specific a non-linear equation, such as the Body Mass Index (BMI) of a person or the energy developed by a falling object. The present invention is a writing instrument which combines a writing instrument with a calculating device in one lightweight and commonly used type of device, thereby freeing the user of the need to refer to complicated charts or other technical materials. The writing implement has a first end which includes the writing tip portion and a second end which includes the tables and operational elements used to calculate a particular formula based on user specified numerical values.

REFERENCES:
patent: 2646220 (1953-07-01), Weiser
patent: 2777636 (1957-01-01), Weiser
patent: 4007364 (1977-02-01), Ojima
patent: 4984494 (1991-01-01), Yang
patent: 5028764 (1991-07-01), Kuhlengel
patent: 6104603 (2000-08-01), Wang
patent: 6890117 (2005-05-01), Hazzard

Affiliated with

Also associated with

Rating

Calculating pen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Calculating pen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calculating pen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3545466