US3300573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite shield for electric cables
Assignee: Nortel Networks Ltd
•
Filing: 1965-06-03
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Granted: 1967-01-24
•
Expires: 1985-06-03
Abstract
No abstract record available.
Inventors
- 👤 Ronald Ulrich Paul
- 👤 Roger J Lemieux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:30
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/18; H01B11/1808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
AN ELECTRIC CABLE COMPRISING AN ELONGATED CONDUCTOR, A LAYER OF INSULATING MATERIAL SURROUNDING THE CONDUCTOR, A CONTINUOUS METAL TUBE SURROUNDING THE LAYER OF INSULATING MATERIAL, AND A SUCCESSION OF TURNS OF STRIP MATERIAL ENCOMPASSING THE TUBE WITH A DISCONTINUITY BETWEEN THE ADJACENT TURNS OF THE STRIP MATERIAL, SAID STRIP MATERIAL BEING UNDER SUFFICIENT TENSION TO FORM AN UPSTANDING RIDGE IN THE TUBE ALONG SAID DISCONTINUITY.
Claim 2
Dependent Claim
65 words
AN ELECTRIC CABLE COMPRISING AN ELONGATED CONDUCTOR, A LAYER OF INSULATING MATERIAL SURROUNDING THE CONDUCTOR, A CONTINUOUS METAL TUBE SURROUNDING THE LAYER OF INSULATING MATERIAL, AND A SUCCESSION OF TURNS OF STRIP MATERIAL ENCOMPASSING THE TUBE WITH A DISCONTINUITY BETWEEN THE ADJACENT TURNS OF THE STRIP MATERIAL, SAID STRIP MATERIAL BEING UNDER SUFFICIENT TENSION TO FORM AN UPSTANDING RIDGE IN THE TUBE ALONG SAID DISCONTINUITY.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |