US2567327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making pile fabric
Assignee: Celanese Corp
•
Filing: 1948-02-11
•
Granted: 1951-09-11
•
Expires: 1968-02-11
Abstract
No abstract record available.
Inventors
- 👤 Ewing Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:01
CPC Classifications
D; D04; D04H; D04H11/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
PROCESS FOR THE PRODUCTION OF A PILE FABRIC BY BONDING TEXTILE STAPLE FIBRES TO A BASE FABRIC, WHICH COMPRISES FIRST APPLYING ON SAID BASE FABRIC A LAYER OF PLASTICIZED POLYVINYL CHLORIDE, THEN SUPERIMPOSING ON SAID LAYER A STICKY COATING SUBSTANTIALLY FREE FROM VOLATILE SOLVENT AND COMPRISING A WATER-INSOLUBLE THERMOPLASTIC POLYVINYL RESINOUS MATERIAL AND TWO PLASTICIZERS FOR SAID POLYVINYL RESINOUS MATERIAL, ONE PLASTICIZER HAVING A VAPOR PRESSURE NOT GREATER THAN 0.1 MM. OF MERCURY AT 150* C., AND THE SECOND PLASTICIZER HAVING A VAPOR PRESSURE OF ABOUT 5 MM. OF MER-
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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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |