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Patent US3139948A successfully refreshed from Google Patents.
US3139948A
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Method and apparatus for working energized conductors
Assignee: Individual
•
Filing: 1961-04-25
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Granted: 1964-07-07
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 Harold L Rorden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:32
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; B66F11/044; H; H02; H02G; H02G1/00; H02G1/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
IN APPARATUS FOR WORKING AN ENERGIZED LINE CONDUCTOR WHICH IS SUPPORTED IN SPACED AND INSULATED RELATION TO THE EARTH, MEANS FOR ELEVATING A WORKMAN TO A WORKING POSITION ADJACENT THE LINE CONDUCTOR AND COMPRISING AN AERIAL LIFT AND A PERSONNEL CARRIER FOR SUPPORTING THE WORKMAN, MEANS ELECTRICALLY INSULATING THE PERSONNEL CARRIER FROM THE EARTH AND FROM THE ENERGIZED CONDUCTOR, AND MEANS ON THE CARRIER FOR ENERGIZING THE WORKMAN TO THE POTENTIAL OF THE LINE CONDUCTOR.
References Cited (Backward Citations)
US2277187A
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 |