US3983528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistor network with adjustable resistance value
Assignee: PARAMIC Oy AB
•
Filing: 1975-06-17
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Granted: 1976-09-28
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Expires: 1995-06-17
Abstract
Abstract A substrate is provided with a plurality of parallel connected resistors separated by means permitting the substrate to be broken and the resistors removed so that by removal of an appropriate number of the resistors the resistance of the circuit can be increased to the desired value.
Inventors
- 👤 William Clyde King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:15
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/22; H01C17/23
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
An adjustable resistance resistor network comprising a plurality of individual resistors disposed on an insulating substrate, said resistors being connected together in parallel by strips of conductive material disposed on said insulating substrate, said substrate being provided with weakened lines which extend across said strips of conductive material between each adjacent pair of resistors whereby the substrate can be broken along said weakened lines to remove at least one of said resistors to thereby adjust the resistance value of said resistor network.
Claim 2
Dependent Claim
82 words
An adjustable resistance resistor network comprising a plurality of individual resistors disposed on an insulating substrate, said resistors being connected together in parallel by strips of conductive material disposed on said insulating substrate, said substrate being provided with weakened lines which extend across said strips of conductive material between each adjacent pair of resistors whereby the substrate can be broken along said weakened lines to remove at least one of said resistors to thereby adjust the resistance value of said resistor network.
Claim 3
Dependent Claim
15 words
The resistor network according to claim 1, characterized in that the weakened lines are grooves.
Claim 4
Dependent Claim
15 words
The resistor network according to claim 1 characterized in the substrate comprises a ceramic material.
References Cited (Backward Citations)
US2052533A
Cited
US2382024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |