Inert Ultraviolet Curing Apparatus
US-2024416558-A1 · Dec 19, 2024 · US
Mold release sheet
US8944795B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944795-B2 |
| Application number | US-63777809-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 15, 2009 |
| Priority date | Dec 18, 2008 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present invention relates to a mold half for making an ophthalmic lens, in particular a contact lens, wherein the mold half comprises a release sheet removably arranged on the mold surface of said mold half to separate a lens forming material from the mold surface, as well as to a method for applying a removable mold release sheet to said mold half. The mold half of the invention comprises a vacuum means to removably attach said release sheet to said mold surface, and preferably the mold half further comprises a pinch-off rim for forming the edge of said ophthalmic lens.
First claim
Opening claim text (preview).
The invention claimed is: 1. A mold half, for making an ophthalmic lens, comprising a mold surface, a lens forming area and a release sheet removably arranged on the mold surface of said mold half, characterized in that the release sheet has a thickness of from 5 to 50 μm, tightly conforms to the contour of at least the lens forming area of said mold half and extends substantially beyond said lens forming area, wherein said mold half comprises vacuum means to removably attach said…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
- B29D11/00009Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8944795B2 cover?
- The present invention relates to a mold half for making an ophthalmic lens, in particular a contact lens, wherein the mold half comprises a release sheet removably arranged on the mold surface of said mold half to separate a lens forming material from the mold surface, as well as to a method for applying a removable mold release sheet to said mold half. The mold half of the invention comprises …
- Who is the assignee on this patent?
- Heinrich Axel, Heidrich Halina, Bayer Alexander, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification B29D11/00009. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 03 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).