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US3173121A Expired / Lapsed US ⏱️ 0.0 years remaining

Hermetically sealed resistor

Assignee: Individual
•
Filing: 1962-06-18
•
Granted: 1965-03-09
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Expires: 1982-06-18
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Abstract

No abstract record available.

Inventors

  • 👤 Robert O Murry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 23:15
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/14; H01C1/148; H01C1/02; H01C1/024

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 239 words
A HERMETICALLY SEALED RESISTOR COMPRISED OF A HERMETIC JACKET IN THE SHAPE OF A HOLLOW CYLINDER HAVING TWO FLAT ENDS EACH OF WHICH ARE METALIZED, A RESISTIVE ELEMENT IN THE SHAPE OF A CYLINDER HAVING TWO ENDS, TWO CAPS EACH HAVING SURFACES THEREIN DISPOSED SO AS TO GRIP THE RESISTIVE ELEMENT, ONE CAP BEING PRESSED ONTO ONE END OF THE RESISTIVE ELEMENT UNTIL ITS SURFACES ARE IN YIELDING INTERFERENCE WITH THE RESISTIVE ELEMENT, THE OTHER CAP BEING PRESSED ONTO THE OTHER END OF THE RESISTIVE ELEMENT UNTIL ITS SURFACES ARE IN YIELDING INTERFERENCE WITH THE RESISTIVE ELEMENT, EACH OF THE CAPS HAVING A BELLOWS BEAD DISPOSED SO AS TO COMPENSATE FOR RELATIVE MOVEMENT BETWEEN THE RESISTIVE ELEMENT AND THE HERMETIC JACKET DUE TO DIFFERENCES IN THERMAL EXPANSION BETWEEN THE RESISTIVE ELEMENT AND THE HERMETIC JACKET, EACH OF THE CAPS HAVING AN ANNULAR SKIRT THE ANNULAR SKIRT OF ONE CAP HAVING A CLEARANCE FIT INTO ONE END OF THE HERMETIC JACKET, THE ANNULAR SKIRT OF THE OTHER CAP HAVING A CLEARANCE FIT INTO THE OTHER END OF THE HERMETIC JACKET, A SOLDER SEAL BETWEEN ONE FLAT END OF THE HERMETIC JACKET AND THE BELLOWS BEAD OF THE ONE CAP, A SOLDER SEAL BETWEEN THE OTHER FLAT END OF THE HERMETIC JACKET AND THE BELLOWS BEAD OF THE OTHER CAP, THE SOLDER SEALS BEING CAPABLE OF YIELDING SUFFICIENTLY TO ACCOMMODATE DIFFERENCES OF THERMAL EXPANSION BETWEEN THE HERMETIC JACKET AND THE CAPS.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-03-08 1968-09-07 1969-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-03-08 1972-09-07 1973-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-03-08 1976-09-07 1977-03-09 $7700.00 Window Closed / Lapsed

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