US4468425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boss formation using low surface energy dams
Assignee: Northern Engraving and Manuf Co
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Filing: 1982-04-29
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Granted: 1984-08-28
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Expires: 2002-04-29
Abstract
Abstract An article and its method of manufacture. The article comprises a base provided with a surface having a surface pattern. The surface pattern has at least one edge or boundary defined by at least one continuous retaining means. At least a portion of the retaining means is a contiguous low energy surface. The article additionally optionally comprises a volume or hardened resin covering only the surface pattern. The method of the invention comprises forming the continuous retaining means comprising a contiguous low energy surface to define the boundary of the pattern area, introducing a liquid resin into the pattern area and hardening the resin to form an elevated boss.
Inventors
- 👤 Kenneth B. Gilleo
- 👤 Willard H. Kreibich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:26
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/20; B44C1/205; B41; B41M; B41M3/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24612; Y10T428/24628; Y10T428/24736
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
115 words
An article comprising a base including a non-porous surface having a surface energy greater than 30 dynes per centimeter and a pattern area on said surface, a continuous, raised retaining means defining a boundary enclosing said pattern area, at least a portion of said retaining means being formed by a continuous strip of a hardened boundary-forming composition which is applied as a liquid and contains a low surface energy of about 5 to about 20 dynes per centimeter; and a solidified resin which is applied as a liquid, adheres to said surface and completely covers said pattern area at a depth greater than the height of said retaining means without extending over said retaining means.
Claim 2
Dependent Claim
115 words
An article comprising a base including a non-porous surface having a surface energy greater than 30 dynes per centimeter and a pattern area on said surface, a continuous, raised retaining means defining a boundary enclosing said pattern area, at least a portion of said retaining means being formed by a continuous strip of a hardened boundary-forming composition which is applied as a liquid and contains a low surface energy of about 5 to about 20 dynes per centimeter; and a solidified resin which is applied as a liquid, adheres to said surface and completely covers said pattern area at a depth greater than the height of said retaining means without extending over said retaining means.
Claim 3
Dependent Claim
17 words
An article according to claim 1 wherein said retaining means in completely formed from said boundary-forming composition.
Claim 4
Dependent Claim
14 words
An article according to claim 2 wherein said boundary-forming composition is applied by printing.
Claim 5
Dependent Claim
25 words
An article according to claim 1 wherein said surface comprises a polymer selected from the group polyesters, acrylics, polyamides, and polyvinyl polymers and thermosetting prepolymers.
Claim 6
Dependent Claim
26 words
An article according to claim 1 wherein the resin is selected from the group of catalyzed urethanes, catalyzed epoxies, radiation curable polymers, and heat curable polymers.
Claim 7
Dependent Claim
15 words
An article according to claim 1 wherein said low surface energy compound is a fluorocarbon.
Claim 8
Dependent Claim
27 words
An article according to claim 6 wherein said fluorocarbon is selected from the group consisting of polymers and copolymers perfluoro alkyl acrylates, polyperfluoroalkysulfamidoalkanol esters and polyperfluoroalklsulfamidoalkanol urethanes.
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) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |