Patent US3140345A successfully refreshed from Google Patents.
US3140345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bus duct
Assignee: Cutler Hammer Inc
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Filing: 1961-05-17
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Granted: 1964-07-07
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Expires: 1981-05-17
Abstract
No abstract record available.
Inventors
- 👤 William A Kuhar
- 👤 Elmer T Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:21
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A BUS DUCT, A PAIR OF OPPOSED HOUSING HALVES, BUS BARS EXTENDING THROUGH THE HOUSING HALVES IN SPACED RELATION TO THE LATTER, INSULATION STRIPS MOUNTED ALTERNATELY ACROSS EACH OF SAID HOUSING HALVES IN SPACED APART RELATION AND HAVING NOTCHES TO RECEIVE AND SUPPORT THE BUS BARS, SAID NOTCHES IN THE STRIPS IN EACH HOUSING HALF OPENING IN THE SAME DIRECTION AND TOWARD THE OPEN ENDS OF THE NOTCHES IN THE OTHER HOUSING HALF, AND SAID NOTCHES IN SAID STRIPS BEING DIMENSIONED SO THAT WITH SAID BUS BARS SEATED THEREIN THE LONGITUDINAL CENTER LINES OF THE LATTER AT SAID STRIPS LIE WITHIN THE OPPOSITE HOUSING HALF SO THAT A WAVE FORM IS IMPARTED TO SUCH BARS LONGITUDINALLY THEREOF WHEN SAID HOUSING HALVES ARE SECURED TOGETHER.
Claim 2
Dependent Claim
125 words
IN A BUS DUCT, A PAIR OF OPPOSED HOUSING HALVES, BUS BARS EXTENDING THROUGH THE HOUSING HALVES IN SPACED RELATION TO THE LATTER, INSULATION STRIPS MOUNTED ALTERNATELY ACROSS EACH OF SAID HOUSING HALVES IN SPACED APART RELATION AND HAVING NOTCHES TO RECEIVE AND SUPPORT THE BUS BARS, SAID NOTCHES IN THE STRIPS IN EACH HOUSING HALF OPENING IN THE SAME DIRECTION AND TOWARD THE OPEN ENDS OF THE NOTCHES IN THE OTHER HOUSING HALF, AND SAID NOTCHES IN SAID STRIPS BEING DIMENSIONED SO THAT WITH SAID BUS BARS SEATED THEREIN THE LONGITUDINAL CENTER LINES OF THE LATTER AT SAID STRIPS LIE WITHIN THE OPPOSITE HOUSING HALF SO THAT A WAVE FORM IS IMPARTED TO SUCH BARS LONGITUDINALLY THEREOF WHEN SAID HOUSING HALVES ARE SECURED TOGETHER.
References Cited (Backward Citations)
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Cited
US2372267A
Cited
US2407142A
Cited
US2482310A
Cited
US2681392A
Cited
US2903503A
Cited
FR1241389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |