Patent US2801949A successfully refreshed from Google Patents.
US2801949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making patent leather-like finish on polyvinyl chloride sheet materials
Assignee: EIDP Inc
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Filing: 1953-11-06
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Granted: 1957-08-06
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Expires: 1973-11-06
Abstract
No abstract record available.
Inventors
- 👤 Bateman Alva Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:35
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/04; B29C59/046; B29D; B29D7/00; B32; B32B; B32B27/00; D; D06; D06N; D06N3/00; D06N3/007; D06N3/0077; D06N3/0086; D06N3/0095; D06N3/04; D06N3/06; B29K; B29K2027/00; B29K2027/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
THE PROCESS OF PRODUCING A CONTINUOUS LENGTH OF FLEXIBLE PIGMENTED POLYVINYL CHLORIDE SHEET MATERIAL IN ROLL FORM, WITH A SMOOTH, HIGHLY POLISHED, MIRROR-IN FINISH THAT WILLBE PRESERVED DURING STORAGE AND SHIPPING, WHICH COMPRISES ADHERING TO THE NORMALLY EXPOSED SURFACE OF A PREFORMED POLYVINYL CHLORIDE SHEET MATERIAL A SMOOTH STRIPPABLE FILM OF MATERIAL BEING A MEMBER OF THE CLASS CONSISTING OF CELLOPHANE, POLYETHYLENE TEREPHTHALATE AND CELLULOSE ACETATE, BY PASSING SAID SHEET MATERIAL AND FILM BETWEEN REVOLVING PRESSURE ROLLS WITH THE FILM IN CONTACT WITH SAID NORMALLY EXPOSED SURFACE, AT LEAST ONE OF SAID PRESSURE ROLLS BEING HEATED, WHEREBY THE SURFACE OF SAID SHEET MATERIAL IS MOLDED AGAINST SAID SMOOTH FILM, ROLLING UP THE LAMINATED ASSEMBLY, STORING THE ROLL AND STRIPPING SAID FILM FROM THE POLYVINYL CHLORIDE SURFACE PRIOR TO USE.
Claim 2
Dependent Claim
129 words
THE PROCESS OF PRODUCING A CONTINUOUS LENGTH OF FLEXIBLE PIGMENTED POLYVINYL CHLORIDE SHEET MATERIAL IN ROLL FORM, WITH A SMOOTH, HIGHLY POLISHED, MIRROR-IN FINISH THAT WILLBE PRESERVED DURING STORAGE AND SHIPPING, WHICH COMPRISES ADHERING TO THE NORMALLY EXPOSED SURFACE OF A PREFORMED POLYVINYL CHLORIDE SHEET MATERIAL A SMOOTH STRIPPABLE FILM OF MATERIAL BEING A MEMBER OF THE CLASS CONSISTING OF CELLOPHANE, POLYETHYLENE TEREPHTHALATE AND CELLULOSE ACETATE, BY PASSING SAID SHEET MATERIAL AND FILM BETWEEN REVOLVING PRESSURE ROLLS WITH THE FILM IN CONTACT WITH SAID NORMALLY EXPOSED SURFACE, AT LEAST ONE OF SAID PRESSURE ROLLS BEING HEATED, WHEREBY THE SURFACE OF SAID SHEET MATERIAL IS MOLDED AGAINST SAID SMOOTH FILM, ROLLING UP THE LAMINATED ASSEMBLY, STORING THE ROLL AND STRIPPING SAID FILM FROM THE POLYVINYL CHLORIDE SURFACE PRIOR TO USE.
References Cited (Backward Citations)
US2275957A
Cited
US2303826A
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US2303828A
Cited
US2626886A
Cited
US2656292A
Cited
US2653885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |