Paper clamp
US4562618A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1984 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Feb 16, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44479
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A paper clamp for holding documents together, usable on desks and permissible of one-hand operation, the paper clamp comprising: PA0 a base plate; a pair of supports erected at opposite sides of the base plate; a lower plate pivotally supported by and between the pair of supports; an upper plate pivotally supported by and between the pair of supports, wherein the upper plate is pivotable in an opposite direction to that of the lower plate; the lower plate and the upper plate including toothed portions, which are in engagement with each other so as to enable the both plates to pivot in opposite directions; the upper plate terminating away from the terminating end of the lower plate; and a leaf spring provided between the lower plate and the base plate whereby the terminating end of the upper plate is placed into contact with the lower plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.