Mark applicable to general articles with blocking device against abusive removal
US4646452A · kind A · utility
7Cited by
18References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1984 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Nov 7, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44573
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A first and a second element, the latter being insertable in the former, but prevented from being extracted due to operation of blocking means. Each of the said first and second elements is provided with cooperating members for engaging the article to be marked. The blocking means can be disengaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.