← Back to Patent Explorer
US3247573A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making magnetic ferrite sheet with embedded conductors

Assignee: RCA Corp
•
Filing: 1962-06-11
•
Granted: 1966-04-26
•
Expires: 1982-06-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Robert L Noack

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 12:09
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H01; H01B; H01B3/00; H01B3/002; H01B3/004; H01F; H01F41/00; H01F41/14; H01F41/16; H05K1/03; H05K1/0306; H05K3/00; H05K3/10; H05K3/20; H05K3/205; H05K1/092; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0364; H05K2201/0376; H05K2201/08; H05K2201/083; H05K3/12; H05K3/1216; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T29/4902; Y10T29/49082; Y10T29/49099; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49158

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 66 words
THE METHOD OF FORMING A SHEET OF GREEN FERRITE HAVING CONDUCTIVE PASTE CONDUCTORS IMBEDDED FLUSH WITH ONE SURFACE THEROF, COMPRISING THE STEPS OF DEPOSITING THE DESIRED CONDUCTIVE PASTE CONDUCTORS ON A SMOOTH SURFACE, LAYING A SLURRY OF FERRITE OVER THE CONDUCTIVE PASTE CONDUCTORS AND THE SMOOTH SURFACE, SOLIDIFYING THE FERITE SLURRY, AND SEPARATING THE SOLIDIFIED FERRITE AND THE IMBEDDED CONDUCTIVE PASTE CONDUCTORS FROM SAID SMOOTHE SURFACE.
Claim 2
Independent Claim 66 words
THE METHOD OF FORMING A SHEET OF GREEN FERRITE HAVING CONDUCTIVE PASTE CONDUCTORS IMBEDDED FLUSH WITH ONE SURFACE THEROF, COMPRISING THE STEPS OF DEPOSITING THE DESIRED CONDUCTIVE PASTE CONDUCTORS ON A SMOOTH SURFACE, LAYING A SLURRY OF FERRITE OVER THE CONDUCTIVE PASTE CONDUCTORS AND THE SMOOTH SURFACE, SOLIDIFYING THE FERITE SLURRY, AND SEPARATING THE SOLIDIFIED FERRITE AND THE IMBEDDED CONDUCTIVE PASTE CONDUCTORS FROM SAID SMOOTHE SURFACE.
Claim 3
Independent Claim 243 words
THE METHOD OF FORMING A SHEET OF LUNIFORM HOMOGENEOUS SINTERED FERRITE HAVING IMBEDDED CONDUCTORS, COMPRISING THE STEPS OF ETCHING A SHEET META STENCIL WITH OPENINGS HAVING THE PATTERN OF THE DESIRED CONDUCTORS, HINGEDLY FIXING AN EDGE OF SAID STENCIL TO A GLASS SUBSTRATE IN SUCH A WAY THAT THE MAIN PORTION OF THE STENCIL IS NORMALLY SEPARATED FROM THE SUBSTRATE BUT CAN BE PRESSED INTO SMOOTH CONTACT THEREWITH, APPLYING A PASTE OF CONDUCTIVE POWDER AND VEHICLE THROUGH SAID STENCIL TO SAID SUBSTRATE WITH A SPATULA WHICH PUSHES THE STENCIL INTO CONTACT WITH THE SUBSTRATE AND PUSHES THE MIXTURE THROUGH THE STENCIL TO THE SUBSTRATE, SAID CONDUCTIVE POWDER BEING SELECTED FROM THE CLASS CONSISTING OF PALLADIUM, PLATINUM, RHODIUM AND RHENIUM, SAID VEHICLE BEING A GREASE SUCH AS AUTOMOTIVE GREASE WHICH ADHERES TO SAID GLASS SUBSTRATE BUT NOT TO SAID STENCIL, WHEREBY THE PASTE STICKS TO THE SUBSTRATE WHEN SAID SPATULA IS REMOVED AND PERMITS THE STENCIL TO SPRING UP AWAY FROM THE SUBSTRATE, WASHING AWAY AT LEAST A PORTION OF SAID VEHICLE LEAVING CONDUCTORS IN THE FORM OF SAID CONDUCTIVE POWDER IN THE DESIRED PATTERN ON THE SUBSTRATE, DOCTOR BLADING A GREEN FERRITE SLURRY OVER THE CONDUCTORS ON THE SUBSTRATE, SOLIDIFYING THE DOCTOR BLADED FERRITE SLURRY BY DRYING, REMOVING THE DOCTOR BLADED FERRITE AND IMBEDDED CONDUCTORS FROM SAID SUBSTRATE, PRESSURE LAMINATING A PLURALITY OF SUCH GREEN FERRITE SHEETS, AND FIRING THE LAMINATION TO REMOVER ANY OF SAID VEHICLE REMAINING AND TO SINTER THE FERRITE.
Claim 4
Independent Claim 243 words
THE METHOD OF FORMING A SHEET OF LUNIFORM HOMOGENEOUS SINTERED FERRITE HAVING IMBEDDED CONDUCTORS, COMPRISING THE STEPS OF ETCHING A SHEET META STENCIL WITH OPENINGS HAVING THE PATTERN OF THE DESIRED CONDUCTORS, HINGEDLY FIXING AN EDGE OF SAID STENCIL TO A GLASS SUBSTRATE IN SUCH A WAY THAT THE MAIN PORTION OF THE STENCIL IS NORMALLY SEPARATED FROM THE SUBSTRATE BUT CAN BE PRESSED INTO SMOOTH CONTACT THEREWITH, APPLYING A PASTE OF CONDUCTIVE POWDER AND VEHICLE THROUGH SAID STENCIL TO SAID SUBSTRATE WITH A SPATULA WHICH PUSHES THE STENCIL INTO CONTACT WITH THE SUBSTRATE AND PUSHES THE MIXTURE THROUGH THE STENCIL TO THE SUBSTRATE, SAID CONDUCTIVE POWDER BEING SELECTED FROM THE CLASS CONSISTING OF PALLADIUM, PLATINUM, RHODIUM AND RHENIUM, SAID VEHICLE BEING A GREASE SUCH AS AUTOMOTIVE GREASE WHICH ADHERES TO SAID GLASS SUBSTRATE BUT NOT TO SAID STENCIL, WHEREBY THE PASTE STICKS TO THE SUBSTRATE WHEN SAID SPATULA IS REMOVED AND PERMITS THE STENCIL TO SPRING UP AWAY FROM THE SUBSTRATE, WASHING AWAY AT LEAST A PORTION OF SAID VEHICLE LEAVING CONDUCTORS IN THE FORM OF SAID CONDUCTIVE POWDER IN THE DESIRED PATTERN ON THE SUBSTRATE, DOCTOR BLADING A GREEN FERRITE SLURRY OVER THE CONDUCTORS ON THE SUBSTRATE, SOLIDIFYING THE DOCTOR BLADED FERRITE SLURRY BY DRYING, REMOVING THE DOCTOR BLADED FERRITE AND IMBEDDED CONDUCTORS FROM SAID SUBSTRATE, PRESSURE LAMINATING A PLURALITY OF SUCH GREEN FERRITE SHEETS, AND FIRING THE LAMINATION TO REMOVER ANY OF SAID VEHICLE REMAINING AND TO SINTER THE FERRITE.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-04-25 1969-10-25 1970-04-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-04-25 1973-10-25 1974-04-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-04-25 1977-10-25 1978-04-26 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag