Patent US3152220A successfully refreshed from Google Patents.
US3152220A
Expired / Lapsed
US
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Electric conducting means for metal pipes
Assignee: Ivacan Inc
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Filing: 1962-04-23
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Granted: 1964-10-06
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Expires: 1982-04-23
Abstract
No abstract record available.
Inventors
- 👤 Gallacher Andrew Forbes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:57
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/02; F16L21/03; F16L25/00; F16L25/01; H; H01; H01R; H01R4/00; H01R4/58; H01R4/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AS AN ARTICLE OF MANUFACTURE, A SECTION OF METAL PIPE HAVING A BELL END AND A SPIGOT END FOR EFFECTING CONNECTION TO ADJOINING PIPE SECTIONS OF LIKE CONFIGURATION, SAID PIPE SECTION INCLUDING ELECTRIC CONDUCTING MEANS FOR ELECTRICALLY BRIDGING SAID CONNECTIONS, SAID CONDUCTING MEANS COMPRISING A DUCTILE STRIP OF CONDUCTING METAL ANCHORED ADJACENT TO EACH END OF THE PIPE SECTION AND LYING SUBSTANTIALLY FLAT AGAINST THE EXTERIOR WALL OF THE PIPE SECTION,
Claim 2
Dependent Claim
71 words
AS AN ARTICLE OF MANUFACTURE, A SECTION OF METAL PIPE HAVING A BELL END AND A SPIGOT END FOR EFFECTING CONNECTION TO ADJOINING PIPE SECTIONS OF LIKE CONFIGURATION, SAID PIPE SECTION INCLUDING ELECTRIC CONDUCTING MEANS FOR ELECTRICALLY BRIDGING SAID CONNECTIONS, SAID CONDUCTING MEANS COMPRISING A DUCTILE STRIP OF CONDUCTING METAL ANCHORED ADJACENT TO EACH END OF THE PIPE SECTION AND LYING SUBSTANTIALLY FLAT AGAINST THE EXTERIOR WALL OF THE PIPE SECTION,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |