Patent US2986486A successfully refreshed from Google Patents.
US2986486A
Expired / Lapsed
US
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Composite plastic protective covering for power cables
Assignee: Canada Wire and Cable Co Ltd
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Filing: 1959-09-03
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Granted: 1961-05-30
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Expires: 1979-09-03
Abstract
No abstract record available.
Inventors
- 👤 Short Herbert Douglass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:08
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/28; H01B7/282; H01B7/2825; B; B29; B29C; B29C63/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2935; Y10T428/2936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
THE METHOD OF APPLYING AN EXTRUDED WATER-PROOF PLASTIC SHEATH TO AN ELONGATED, CONTINUOUS ROD-LIKE MEMBER WHICH HAS AN OUTER SURFACE TO WHICH THE PLASTIC SHEATH WILL NOT FUSE, COMPRISING THE STEPS OF COATING A MEMBER WITH AN ADHESIVE MATERIAL, APPLYING A LAYER OF PLASTIC MATERIAL IN STRIP FORM OVER THE MEMBER SO AS TO ADHERE THE LAYER TO THE MEMBER WHILE MAINTAINING THE EXTERNAL SURFACE OF THE LAYER FREE FROM CONTAMINATION BY ADHESIVE AND SUBSEQUENTLY EXTRUDING, UNDER ELEVATED TEMPERATURE, A PLASTIC SHEATH OVER THE SAID LAYER, THE HEAT OF EXTRUSION CAUSING THE EXTRUDED SHEATH TO FUSE TO THE SAID LAYER AND THEREBY BE BONDED TO THE SURFACE OF THE MEMBER THROUGH THE MEDIUM OF THE LAYER AND THE ADHESIVE.
Claim 2
Independent Claim
119 words
THE METHOD OF APPLYING AN EXTRUDED WATER-PROOF PLASTIC SHEATH TO AN ELONGATED, CONTINUOUS ROD-LIKE MEMBER WHICH HAS AN OUTER SURFACE TO WHICH THE PLASTIC SHEATH WILL NOT FUSE, COMPRISING THE STEPS OF COATING A MEMBER WITH AN ADHESIVE MATERIAL, APPLYING A LAYER OF PLASTIC MATERIAL IN STRIP FORM OVER THE MEMBER SO AS TO ADHERE THE LAYER TO THE MEMBER WHILE MAINTAINING THE EXTERNAL SURFACE OF THE LAYER FREE FROM CONTAMINATION BY ADHESIVE AND SUBSEQUENTLY EXTRUDING, UNDER ELEVATED TEMPERATURE, A PLASTIC SHEATH OVER THE SAID LAYER, THE HEAT OF EXTRUSION CAUSING THE EXTRUDED SHEATH TO FUSE TO THE SAID LAYER AND THEREBY BE BONDED TO THE SURFACE OF THE MEMBER THROUGH THE MEDIUM OF THE LAYER AND THE ADHESIVE.
References Cited (Backward Citations)
US2403077A
Cited
US2631186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |