US3434904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protection of polished metal surfaces
Assignee: Dow Chemical Co
•
Filing: 1965-10-27
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Granted: 1969-03-25
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Expires: 1985-10-27
Abstract
No abstract record available.
Inventors
- 👤 Glenn C Wiggins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:56
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/022; H05K3/025; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN THE METHOD OF TEMPORARILY PROTECTING A POLISHED METALLIC SURFACE WITH A SYNTHETIC, RESINOUS, FLEXIBLE SHEET MATERIAL, THE IMPROVEMENT CONSISTING OF: CONTACTING SAID POLISHED METALLIC SURFACE WITH A FLEXIBLE LAMINATE FILM STRUCTURE COMPOSED OF AN INNER LAYER OF A CHLOROETHYLENE POLYMER AND AN OUTER LAYER OF A METALLIC FOIL, SAID LAMINATE FILM STRUCTURE BEING ESSENTIALLY FREE FROM ELECTROSTATIC CHARGE, WHEREIN SAID CHLOROETHYLENE POLYMER PORTION OF SAID LAMINATE FILM STRUCTURE IS APPLIED TO SAID POLISHED METAL SURFACE UNDER PRESSURE SUFFICIENT TO REMOVE ESSENTIALLY ALL OF THE AIR FROM BETWEEN SAID LAMINATE FILM STRUCTURE AND SAID POLISHED METAL SURFACE.
Claim 2
Dependent Claim
97 words
IN THE METHOD OF TEMPORARILY PROTECTING A POLISHED METALLIC SURFACE WITH A SYNTHETIC, RESINOUS, FLEXIBLE SHEET MATERIAL, THE IMPROVEMENT CONSISTING OF: CONTACTING SAID POLISHED METALLIC SURFACE WITH A FLEXIBLE LAMINATE FILM STRUCTURE COMPOSED OF AN INNER LAYER OF A CHLOROETHYLENE POLYMER AND AN OUTER LAYER OF A METALLIC FOIL, SAID LAMINATE FILM STRUCTURE BEING ESSENTIALLY FREE FROM ELECTROSTATIC CHARGE, WHEREIN SAID CHLOROETHYLENE POLYMER PORTION OF SAID LAMINATE FILM STRUCTURE IS APPLIED TO SAID POLISHED METAL SURFACE UNDER PRESSURE SUFFICIENT TO REMOVE ESSENTIALLY ALL OF THE AIR FROM BETWEEN SAID LAMINATE FILM STRUCTURE AND SAID POLISHED METAL SURFACE.
References Cited (Backward Citations)
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US3152950A
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US3075868A
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US3354015A
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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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |