US3071749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable resistors and method of making the same
Assignee: ThyssenKrupp Budd Co
•
Filing: 1960-05-17
•
Granted: 1963-01-01
•
Expires: 1980-05-17
Abstract
No abstract record available.
Inventors
- 👤 James E Starr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:25
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/08; H01C1/084; H01C17/00; H01C17/06; H01C17/07; H01C17/22; H01C17/23; H01C7/00; H01C7/22; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099; Y10T29/49117; Y10T29/49124; Y10T29/49155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A PRINTED CIRCUIT RESISTOR UNIT COMPRISING IN COMBINATION, A FOIL RESISTOR PATTERN, A THIN PLASTIC INSULATING LAYER SUPPORTING AND BONDED TO ONE SIDE OF SAID RESISTOR PATTERN, A CONTINUOUS METAL SHEET BONDED TO THE OTHER SIDE OF SAID INSULATING LAYER, SAID METAL SHEET BEING OF A MATERIAL OF GOOD ELECTRICAL AND HEAT CONDUCTIVE MATERIAL TO CONSTITUTE A COMMON POTENTIAL AREA AND HEAT SINK, AN ELECTRICAL CONDUCTOR LEAD CONNECTED TO SAID RESISTOR PATTERN, AND A SOLDER CONNECTION BETWEEN SAID RESISTOR PATTERN AND SAID METAL SHEET THROUGH SAID THIN PLASTIC INSULATING LAYER AT A CALIBRATED POINT SPACED FROM THE LEAD CONNECTED ON THE PATTERN ELECTRICALLY CONNECTING SAID METAL SHEET TO SAID ELECTRICAL CONDUCTOR LEAD WITH A PORTION OF SAID RESISTOR PATTERN IN SERIES THEREBETWEEN.
Claim 2
Dependent Claim
122 words
A PRINTED CIRCUIT RESISTOR UNIT COMPRISING IN COMBINATION, A FOIL RESISTOR PATTERN, A THIN PLASTIC INSULATING LAYER SUPPORTING AND BONDED TO ONE SIDE OF SAID RESISTOR PATTERN, A CONTINUOUS METAL SHEET BONDED TO THE OTHER SIDE OF SAID INSULATING LAYER, SAID METAL SHEET BEING OF A MATERIAL OF GOOD ELECTRICAL AND HEAT CONDUCTIVE MATERIAL TO CONSTITUTE A COMMON POTENTIAL AREA AND HEAT SINK, AN ELECTRICAL CONDUCTOR LEAD CONNECTED TO SAID RESISTOR PATTERN, AND A SOLDER CONNECTION BETWEEN SAID RESISTOR PATTERN AND SAID METAL SHEET THROUGH SAID THIN PLASTIC INSULATING LAYER AT A CALIBRATED POINT SPACED FROM THE LEAD CONNECTED ON THE PATTERN ELECTRICALLY CONNECTING SAID METAL SHEET TO SAID ELECTRICAL CONDUCTOR LEAD WITH A PORTION OF SAID RESISTOR PATTERN IN SERIES THEREBETWEEN.
References Cited (Backward Citations)
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |