Patent US1791629A successfully refreshed from Google Patents.
US2534318A
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Process for modifying b. a.-type wool to impart harshness and low luster thereto
Assignee: Bigelow Sanford Carpet Co Inc
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Filing: 1949-07-16
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Granted: 1950-12-19
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Expires: 1969-07-16
Abstract
No abstract record available.
Inventors
- 👤 Stuart E Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:05
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/46; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE PROCESS FOR IMPARTING TO B. A.-TYPE WOOL THE PROPERTIES OF HARSHNESS REQUISITE FOR CONVERSION OF THE WOOL BY STANDARD PROCEDURES INTO PILE FABRIC FLOOR COVERING, AND FOR DECREASING ITS LUSTRE, WHICH CONSISTS ESSENTIALLY IN WETTING THE WOOL WITH AN ACID AQUEOUS DISPERSION OF 1/2% TO 10% OF THE WEIGHT OF THE WOOL OF TITANIUM DIOXIDE.
Claim 2
Dependent Claim
56 words
THE PROCESS FOR IMPARTING TO B. A.-TYPE WOOL THE PROPERTIES OF HARSHNESS REQUISITE FOR CONVERSION OF THE WOOL BY STANDARD PROCEDURES INTO PILE FABRIC FLOOR COVERING, AND FOR DECREASING ITS LUSTRE, WHICH CONSISTS ESSENTIALLY IN WETTING THE WOOL WITH AN ACID AQUEOUS DISPERSION OF 1/2% TO 10% OF THE WEIGHT OF THE WOOL OF TITANIUM DIOXIDE.
References Cited (Backward Citations)
GB190109556A
Cited
US1941285A
Cited
US1980428A
Cited
US2068877A
Cited
GB488836A
Cited
US2147533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |