Patent US4991268A successfully refreshed from Google Patents.
US4991268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memo clip
Assignee: HSU CHENG-TUNG
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Filing: 1990-05-30
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Granted: 1991-02-12
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Expires: 2010-05-30
Abstract
Abstract An improved memo clip and in particular to one utilizing a saw teeth plate and a pressing plate to clip paper and grasp the paper firmly by means of a spring. When desired to pull one piece of paper out, it is simply by pulling the piece of paper out either from left or right hand side and paper will easily be pulled out without bothering other paper.
Inventors
- 👤 Ming-Chuan Ho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:44
CPC Classifications
B; B42; B42F; B42F15/00; B42F15/06; B42F15/066; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/203
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
148 words
An improved memo clip comprising: a main body having a concavity at its inner bottom, two grooves at two sides, two notches at two sides and a bolt at its concavity; a pressing plate having several obtuse teeth on top portion, a bolt at its back and two lugs at its two bottom ends; a back plate having a saw teeth plate; a spring; and is characteristized by said spring has one end connected with said bolt of said pressing plate and the other end with said bolt of said main body to push said pressing plate against said back plate; and said two lugs placed in said two notches of said main body so that when paper is sticked into said memo clip, said two lugs will be forced to slide backward and said spring will be forced to squeeze to let paper in and stay firmly.
Claim 2
Dependent Claim
148 words
An improved memo clip comprising: a main body having a concavity at its inner bottom, two grooves at two sides, two notches at two sides and a bolt at its concavity; a pressing plate having several obtuse teeth on top portion, a bolt at its back and two lugs at its two bottom ends; a back plate having a saw teeth plate; a spring; and is characteristized by said spring has one end connected with said bolt of said pressing plate and the other end with said bolt of said main body to push said pressing plate against said back plate; and said two lugs placed in said two notches of said main body so that when paper is sticked into said memo clip, said two lugs will be forced to slide backward and said spring will be forced to squeeze to let paper in and stay firmly.
Claim 3
Dependent Claim
35 words
An improved memo clip, claimed as in claim 1, wherein said two grooves of said main body are for drawing one piece of paper out and leave the other paper stay still in said clip.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |