US3075866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making printed circuits
Assignee: Xerox Corp
•
Filing: 1958-06-19
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Granted: 1963-01-29
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Expires: 1978-06-19
Abstract
No abstract record available.
Inventors
- 👤 Baker Mitchell
- 👤 Edward M Van Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:14
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/06; H05K3/061; H05K3/065; H05K3/062; H05K2203/00; H05K2203/04; H05K2203/044; H05K2203/05; H05K2203/0502; H05K2203/0517; H05K2203/0537; H05K3/30; H05K3/32; H05K3/34; H05K3/3465; H05K3/3468; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49826; Y10T29/49945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A METHOD OF MAKING AN ELECTRICAL CIRCUIT ELEMENT INCLUDING THE STEPS OF ELECTROSTATICALLY DEPOSITING A XEROGRAPHIC TONER RESIST, IN NEGATIVE IMAGE PATTERN OF THE DESIRED CIRCUIT, ON A COPPER CLAD DIELECTRIC BASE, FUSING THE TONER RESIST TO SAID COPPER, DIP-SOLDERING THE PORTIONS OF SAID COPPER NOT PROTECTED BY THE XEROGRAPHIC TONER RESIST, REMOVING SAID XEROGRAPHIC TONER RESIST, AND REMOVING THE PORTIONS OF SAD COPPER NOT PROTECTED BY SOLDER IN AN ETCHING SOLUTION.
Claim 2
Independent Claim
72 words
A METHOD OF MAKING AN ELECTRICAL CIRCUIT ELEMENT INCLUDING THE STEPS OF ELECTROSTATICALLY DEPOSITING A XEROGRAPHIC TONER RESIST, IN NEGATIVE IMAGE PATTERN OF THE DESIRED CIRCUIT, ON A COPPER CLAD DIELECTRIC BASE, FUSING THE TONER RESIST TO SAID COPPER, DIP-SOLDERING THE PORTIONS OF SAID COPPER NOT PROTECTED BY THE XEROGRAPHIC TONER RESIST, REMOVING SAID XEROGRAPHIC TONER RESIST, AND REMOVING THE PORTIONS OF SAD COPPER NOT PROTECTED BY SOLDER IN AN ETCHING SOLUTION.
References Cited (Backward Citations)
US1974011A
Cited
US2202295A
Cited
US2587568A
Cited
US2728693A
Cited
US2919179A
Cited
US2912312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |