Prismatic solar concentrator
US-2024178789-A1 · May 30, 2024 · US
Security markings in retroreflective sheeting
US8950877B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8950877-B2 |
| Application number | US-201013509374-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 10, 2010 |
| Priority date | Nov 12, 2009 |
| Publication date | Feb 10, 2015 |
| Grant date | Feb 10, 2015 |
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Abstract
Official abstract text for this publication.
Retroreflective sheeting includes a first portion of prismatic retroreflective sheeting having a first cube corner structure that creates a first visual feature in the retroreflective sheeting and a second portion of prismatic retroreflective sheeting having a second cube corner structure that differs from the first cube structure and that creates a second visual feature in the sheeting. The second visual feature in the retroreflective sheeting forms a security mark.
First claim
Opening claim text (preview).
What is claimed is: 1. Retroreflective sheeting, comprising: a first portion of prismatic retroreflective sheeting having a first cube corner structure that creates a first visual feature in the retroreflective sheeting; and a second portion of prismatic retroreflective sheeting having a second cube corner structure that differs from the first cube structure and that creates a second visual feature in the sheeting, the second visual feature in the retroreflective sheeting formin…
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- G02B5/124Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8950877B2 cover?
- Retroreflective sheeting includes a first portion of prismatic retroreflective sheeting having a first cube corner structure that creates a first visual feature in the retroreflective sheeting and a second portion of prismatic retroreflective sheeting having a second cube corner structure that differs from the first cube structure and that creates a second visual feature in the sheeting. The se…
- Who is the assignee on this patent?
- Northey Paul J, Orensteen Bruce D, 3M Innovative Properties Co
- What technology area does this patent fall under?
- Primary CPC classification G02B5/124. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).