Patent US4845310A successfully refreshed from Google Patents.
US4845310A
Expired / Lapsed
US
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Electroformed patterns for curved shapes
Assignee: PPG Industries Inc
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Filing: 1987-04-28
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Granted: 1989-07-04
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Expires: 2007-04-28
Abstract
Abstract A method for electroforming a metal grid capable of conforming to a curved substrate is disclosed, as well as use of such a grid in an aircraft transparency.
Inventors
- 👤 Dennis S. Postupack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:47
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0073; H05K9/0094; B; B64; B64C; B64C1/00; B64C1/14; B64C1/1476; C; C25; C25D; C25D1/00; C25D1/08; G; G01; G01R; G01R1/00; G01R1/02; G01R1/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
28 words
A curved transparent article comprising: a. a curved transparent substrate; and b. a conformable electroformed metal grid comprising nonlinear segments disposed on a surface of said transparent substrate.
Claim 2
Dependent Claim
28 words
A curved transparent article comprising: a. a curved transparent substrate; and b. a conformable electroformed metal grid comprising nonlinear segments disposed on a surface of said transparent substrate.
Claim 3
Dependent Claim
24 words
A transparent article according to claim 1 wherein said electroformed metal grid comprises a metal selected from the group consisting of nickel and copper.
Claim 4
Dependent Claim
14 words
A transparent article according to claim 2, wherein the electroformed metal grid comprises copper.
Claim 5
Dependent Claim
18 words
A transparent article according to claim 3, wherein said grid comprises at least 100 apertures per square inch.
Claim 6
Dependent Claim
13 words
A transparent article according to claim 2, wherein the electroformed grid comprises nickel.
Claim 7
Dependent Claim
19 words
A transparent article according to claim 5, wherein said grid has sufficient resistance to function as a heating element.
Claim 8
Dependent Claim
17 words
A transparent article according to claim 6, wherein said grid comprises at least 10 lines per inch.
Claim 9
Dependent Claim
23 words
A transparent article according to claim 1, wherein said transparent substrate is selected from the group consisting of glass and rigid transparent plastics.
Claim 10
Dependent Claim
21 words
A transparent article according to claim 8, wherein said transparent substrate comprises a plurality of transparent layers in a laminated configuration.
Claim 11
Dependent Claim
21 words
A transparent article according to claim 9, wherein the electroformed grid is assembled between two transparent layers of a laminated substrate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |