US3006785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric resistors
Assignee: S E C L ELETTROTECNICA Soc
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Filing: 1958-12-29
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Granted: 1961-10-31
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Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Canegallo Giovanni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:09
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/02; H01C1/034
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AN ELECTRIC RESISTOR COMPRISING A RESISTANCE ELEMENT, AT LEAST ONE LAYER OF INSULATING PAINT IN DIRECT CONTACT WITH SAID RESISTANCE ELEMENT, AND AT LEAST ONE ADDITIONAL LAYER OF INSULATING PAINT OVERLYING THE FIRST MENTIONED LAYER AND CONTAINING APPROXIMATELY 10% OF A POWDERED METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, ALUMINUM, TITANIUM, COPPER, ZINC AND ALLOYS THEREOF, TO AVOID CHANGES IN THE RESISTANCE OF SAID ELEMENT AS A RESULT OF EXPOSURE TO MOISTURE.
Claim 2
Dependent Claim
73 words
AN ELECTRIC RESISTOR COMPRISING A RESISTANCE ELEMENT, AT LEAST ONE LAYER OF INSULATING PAINT IN DIRECT CONTACT WITH SAID RESISTANCE ELEMENT, AND AT LEAST ONE ADDITIONAL LAYER OF INSULATING PAINT OVERLYING THE FIRST MENTIONED LAYER AND CONTAINING APPROXIMATELY 10% OF A POWDERED METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, ALUMINUM, TITANIUM, COPPER, ZINC AND ALLOYS THEREOF, TO AVOID CHANGES IN THE RESISTANCE OF SAID ELEMENT AS A RESULT OF EXPOSURE TO MOISTURE.
References Cited (Backward Citations)
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Cited
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Cited
GB466480A
Cited
US2459018A
Cited
US2660653A
Cited
US2707157A
Cited
US2896135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |