Patent US2551591A successfully refreshed from Google Patents.
US2551591A
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US
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Polyethylene bonded to copper by means of a layer of cuprous oxide integral with copper base
Assignee: International Standard Electric Corp
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Filing: 1945-10-22
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Granted: 1951-05-08
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Expires: 1965-10-22
Abstract
No abstract record available.
Inventors
- 👤 Foord Stanley George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:43
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; H05K3/382; H05K3/385; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/06; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0393; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2203/00; H05K2203/03; H05K2203/0315; Y; Y10; Y10S; Y10S206/00; Y10S206/819; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
THE PROCESS THAT COMPRISES SUPERFICIALLY OXIDIZING A COPPER SURFACE BY HEATING IN AN OXIDIZING ATMOSPHERE AT A TEMPERATURE SUCH THAT THE COPPER SURFACE APPEARS TO BE PINK TO AN EARLY STAGE OF BROWNISH BLACK TO FORM AN ADHERENT LAYER OF CUPROUS OXIDE THEREON AND THEREAFTER HOT PRESSING A LAYER OF POLYETHYLENE UPON SAID SUPERFICIALLY OXIDIZED SURFACE TO FORM A COMPOSITE STRUCTURE COMPRISING THE COPPER SURFACE AND THE POLYETHYLENE LAYER WITH A THIN LAYER OF CUPROUS OXIDE THEREBETWEEN.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |