US2999772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated article comprising a substrate of polyethylene or polyamide and a grafted coating of polytetrafluoroethylene or polymethyl methacrylate
Assignee: EIDP Inc
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Filing: 1952-11-06
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Granted: 1961-09-12
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Expires: 1972-11-06
Abstract
No abstract record available.
Inventors
- 👤 Robert E Burk
- 👤 Edward H Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:20
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; Y; Y10; Y10S; Y10S8/00; Y10S8/18; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T428/31938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A COATED ARTICLE COMPRISING A SOLID SHAPED, THERMOPLASTIC, SYNTHETIC POLYMERIC SUBSTRATE AND A CONTINUOUS COATING OF A THERMOPLASTIC, SYNTHETIC POLYMER GRAFTED TO SAID SUBSTRATE, SAID ARTICLE BEING SELECTED FROM THE GROUP CONSISTING OF A POLYETHYLENE SUBSTRATE COATED WITH TETRAFLUOROETHYLENE, A POLYETHYLENE SUBSTRATE COATED WITH POLYMETHYL METHACRYLATE, AND A POLYAMIDE SUBSTRATE COATED WITH POLYTETRAFLUOROETHYLENE, SAID COATED ARTICLE BEING CHARACTERIZED IN THAT THE COATING IS INCAPABLE OF BEING REMOVED FROM SAID SUBSTRATE WHEN THE COATED ARTICLE IS SUBJECTED TO THE ACTION OF A COMPOUND WHICH IS A SOLVENT FOR THE MATERIAL COMPRISING SAID COATING AND A NONSOLVENT FOR THE MATERIAL COMPRISING SAID SUBSTRATE.
Claim 2
Dependent Claim
101 words
A COATED ARTICLE COMPRISING A SOLID SHAPED, THERMOPLASTIC, SYNTHETIC POLYMERIC SUBSTRATE AND A CONTINUOUS COATING OF A THERMOPLASTIC, SYNTHETIC POLYMER GRAFTED TO SAID SUBSTRATE, SAID ARTICLE BEING SELECTED FROM THE GROUP CONSISTING OF A POLYETHYLENE SUBSTRATE COATED WITH TETRAFLUOROETHYLENE, A POLYETHYLENE SUBSTRATE COATED WITH POLYMETHYL METHACRYLATE, AND A POLYAMIDE SUBSTRATE COATED WITH POLYTETRAFLUOROETHYLENE, SAID COATED ARTICLE BEING CHARACTERIZED IN THAT THE COATING IS INCAPABLE OF BEING REMOVED FROM SAID SUBSTRATE WHEN THE COATED ARTICLE IS SUBJECTED TO THE ACTION OF A COMPOUND WHICH IS A SOLVENT FOR THE MATERIAL COMPRISING SAID COATING AND A NONSOLVENT FOR THE MATERIAL COMPRISING SAID SUBSTRATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |