Patent US3769908A successfully refreshed from Google Patents.
US3769908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal mask screen for screen-printing
Assignee: RCA Licensing Corp
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Filing: 1972-08-28
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Granted: 1973-11-06
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Expires: 1992-08-28
Abstract
Abstract A printing screen comprises a fine metal mesh stretched across a printing frame. A central printing area of the screen has a layer of metal integrally united with the mesh. This central metal layer has a pattern of openings therein corresponding to a pattern which is to be printed on a substrate and outwardly extending tabs at points of stress. An annular region of the mesh surrounding the central metal layer is free of any metal layer but has a thin masking layer of synthetic resin thereon. A border layer of metal on the mesh extends around the outer periphery of the screen.
Inventors
- 👤 P Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:13
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/12; H05K3/1216; H05K3/1225; B; B41; B41C; B41C1/00; B41C1/14; H10; H10D; H10D84/00; H10D84/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
124 words
A metal mask screen for off-contact screen-printing comprising a fine metal mask adapted to be stretched on a printing frame, a central printing area of said screen having a central layer of metal integrally united to one surface of said mesh, said central layer of metal having a pattern of openings therein corresponding to a pattern which is to be printed on a substrate, a region of said mesh surrounding said central layer of metal being free of any metal layer but having a thin, flexible masking layer of synthetic resin adhered thereto, and metal tabs, which are a continuation of said central layer of metal, extending outwardly therefrom at points of stress and into said region which is free of any metal layer.
Claim 2
Dependent Claim
124 words
A metal mask screen for off-contact screen-printing comprising a fine metal mask adapted to be stretched on a printing frame, a central printing area of said screen having a central layer of metal integrally united to one surface of said mesh, said central layer of metal having a pattern of openings therein corresponding to a pattern which is to be printed on a substrate, a region of said mesh surrounding said central layer of metal being free of any metal layer but having a thin, flexible masking layer of synthetic resin adhered thereto, and metal tabs, which are a continuation of said central layer of metal, extending outwardly therefrom at points of stress and into said region which is free of any metal layer.
Claim 3
Dependent Claim
21 words
A screen according to claim 1 including a border layer of metal adhering to said mesh around the outer periphery thereof.
Claim 4
Dependent Claim
27 words
A screen according to claim 1 in which said metal mesh is composed of stainless steel coated with nickel and said central layer of metal is nickel.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |