US3254181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting having short circuit means for communication line protector
Assignee: Bell Telephone Company of Canada
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Filing: 1964-01-07
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Granted: 1966-05-31
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Expires: 1984-01-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph E R Lemieux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:04
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/14; H04; H04M; H04M1/00; H04M1/738; H04M1/74; H04M1/745
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
A FAIL SAFE ASSEMBLY FOR THE PROTECTION OF TELEPHONE AND LIKE COMMUNICATION LINES, COMPRISING: (A) A METAL TUBE, (B) A PROTECTOR HAVING AT LEAST ONE LINE ELECTRODE AND A GROUND ELECTRODE, (C) SAID TUBE INCLUDING MEANS MOUNTING SAID PROTECTOR IN SAID TUBE AXIALLY SLIDABLE IN A PATH THEREIN BETWEEN TWO POSITIONS, IN A FIRST OF WHICH POSITIONS SAID LINE ELECTRODE IS ELECTRICALLY ISOLATED FROM SAID TUBE AND IN THE SECOND OF WHICH POSITIONS SAID LINE ELECTRODE IS ELECTRICALLY CONNECTED TO SAID TUBE,
References Cited (Backward Citations)
US1352117A
Cited
US2504804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |