US2688563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of coating metal strip with polyethylene
Assignee: Polykote Inc
•
Filing: 1951-11-28
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Granted: 1954-09-07
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Expires: 1971-11-28
Abstract
No abstract record available.
Inventors
- 👤 Edward P Kieffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:40
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/02; B05B13/04; B05B13/0442; B05D; B05D1/00; B05D1/002; B05D7/00; B05D7/22; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B05B13/0405; B05B13/041; B05D2202/00; B05D2252/00; B05D2252/02; B05D2254/00; B05D2254/04; B05D2401/00; B05D2401/30; B05D2401/32; B05D2507/00; B05D2507/01; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A PROCESS FOR PROVIDING ONE SIDE OF A METAL STRIP WITH STRONGLY ADHERENT COATING OF POLYETHYLENE, WHICH COMPRISES CONTINUOUSLY MOVING SAID METAL STRIP UPWARDLY ALONG AN INCLINE GREATER THAN THE ANGLE OF REPOSE OF A MASS OF COMMINUTED POLYETHYLENE, RETAINING SAID MASS OF COMMINUTED POLYETHYLENE ON THE UPPER SURFACE OF SAID STRIP AT SAID INCLINE AND AGAINST SLIDING DOWN SAID INCLINE WHEREBY SUCCESSIVE PORTIONS OF SAID STRIP ARE BROUGHT INTO CONTACT WITH THE UNDERSIDE OF SAID MASS OF POLYETHYLENE AND MAINTAINING SAID STRIP AT A TEMPERATURE BETWEEN THE MELTING POINT OF SAID POLYETHYLENE AND THE HIGHER TEMPERATURE AT WHICH DECOMPOSITION OF SAID POLYETHYLENE OCCURS THEREBY TO MELT THE PARTICLES OF SAID MASS OF COMMINUTED POLYETHYLENE IN CONTACT WITH SAID STRIP AND TO ADHERE TO SAID MELTED PARTICLES THE PARTICLES IN CONTACT WITH SAID MELTED PARTICLES, AND CONTINUING MAINTAINING THE TEMPERATURE OF SAID STRIP AFTER PASSING BEYOND SAID MASS TO MELT SAID ADHERED PARTICLES.
Claim 2
Dependent Claim
153 words
A PROCESS FOR PROVIDING ONE SIDE OF A METAL STRIP WITH STRONGLY ADHERENT COATING OF POLYETHYLENE, WHICH COMPRISES CONTINUOUSLY MOVING SAID METAL STRIP UPWARDLY ALONG AN INCLINE GREATER THAN THE ANGLE OF REPOSE OF A MASS OF COMMINUTED POLYETHYLENE, RETAINING SAID MASS OF COMMINUTED POLYETHYLENE ON THE UPPER SURFACE OF SAID STRIP AT SAID INCLINE AND AGAINST SLIDING DOWN SAID INCLINE WHEREBY SUCCESSIVE PORTIONS OF SAID STRIP ARE BROUGHT INTO CONTACT WITH THE UNDERSIDE OF SAID MASS OF POLYETHYLENE AND MAINTAINING SAID STRIP AT A TEMPERATURE BETWEEN THE MELTING POINT OF SAID POLYETHYLENE AND THE HIGHER TEMPERATURE AT WHICH DECOMPOSITION OF SAID POLYETHYLENE OCCURS THEREBY TO MELT THE PARTICLES OF SAID MASS OF COMMINUTED POLYETHYLENE IN CONTACT WITH SAID STRIP AND TO ADHERE TO SAID MELTED PARTICLES THE PARTICLES IN CONTACT WITH SAID MELTED PARTICLES, AND CONTINUING MAINTAINING THE TEMPERATURE OF SAID STRIP AFTER PASSING BEYOND SAID MASS TO MELT SAID ADHERED PARTICLES.
References Cited (Backward Citations)
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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) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |