US3199058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision resistor
Assignee: Electra Manufacturing Co
•
Filing: 1962-03-09
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Granted: 1965-08-03
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Expires: 1982-03-09
Abstract
No abstract record available.
Inventors
- 👤 Howard A Cramer
- 👤 William E Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:18
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/14; H01C1/148; H01C1/02; H01C1/024; H01C1/026; H01C7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN ENCAPSULATED RESISTOR OR THE LIKE COMPRISING, IN COMBINATION, A CIRCUIT ELEMENT, COOPERATING INNER AND OUTER TERMINAL CAPS AT EACH END OF THE ELEMENT, A RIGID CYLINDER SURROUNDING SAID ELEMENT, SAID INNER TERMINAL CAPS BEING CONNECTED TO THE ELEMENT AND PROVIDING ELECTRICAL CONNECTION THEREWITH AND SAID OUTER TERMINAL CAPS BEING DIMENSIONED TO ENGAGE THE ENDS OF THE CYLINDER FOR SEALING THERETO, THE OUTER TERMINAL CAPS BEING IN THE FORM OF THIN FLEXIBLE METAL DIAPHRAGMS HAVING AN INWARDLY PROJECTING CENTRAL PROTUBERANCE SECURED TO THE COOPERATING INNER CAPS OVER A LIMITED AREA AT THE AXIS TO TAKE UP DIFFERENTIAL EXPANSION OF THE CIRCUIT ELEMENT AND THE CYLINDER WHICH SURROUNDS IT INCIDENT TO ABRUPT TEMPERATURE CHANGES, AND AXIAL LEAD WIRES SECURED TO THE OUTER CAPS.
Claim 2
Dependent Claim
122 words
AN ENCAPSULATED RESISTOR OR THE LIKE COMPRISING, IN COMBINATION, A CIRCUIT ELEMENT, COOPERATING INNER AND OUTER TERMINAL CAPS AT EACH END OF THE ELEMENT, A RIGID CYLINDER SURROUNDING SAID ELEMENT, SAID INNER TERMINAL CAPS BEING CONNECTED TO THE ELEMENT AND PROVIDING ELECTRICAL CONNECTION THEREWITH AND SAID OUTER TERMINAL CAPS BEING DIMENSIONED TO ENGAGE THE ENDS OF THE CYLINDER FOR SEALING THERETO, THE OUTER TERMINAL CAPS BEING IN THE FORM OF THIN FLEXIBLE METAL DIAPHRAGMS HAVING AN INWARDLY PROJECTING CENTRAL PROTUBERANCE SECURED TO THE COOPERATING INNER CAPS OVER A LIMITED AREA AT THE AXIS TO TAKE UP DIFFERENTIAL EXPANSION OF THE CIRCUIT ELEMENT AND THE CYLINDER WHICH SURROUNDS IT INCIDENT TO ABRUPT TEMPERATURE CHANGES, AND AXIAL LEAD WIRES SECURED TO THE OUTER CAPS.
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |