US2587504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaned and degreased wool sliver and processes employing the same
Assignee: BIGELOW SANFORD CARPET CO
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Filing: 1945-10-25
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Granted: 1952-02-26
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Expires: 1965-10-25
Abstract
No abstract record available.
Inventors
- 👤 Walter F Moody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:07
CPC Classifications
D; D01; D01C; D01C3/00; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
WASHED, SCORED, DRIED, PICKED, CARDED AND STATIC-FREE WOOL SILVER SUBSTANTIALLY FREE OF GREASY SUBSTANCES AND HAVING ADHERED TO THE FIBERS OF THE SILVER 1/4 TO 1% OF FINELY DIVIDED PARTICLES OF BENTONITE TO THE WEIGHT OF THE WOOL, THE GREATER PROPORTION OF SAID PARTICLES BEING LESS THAN 0.5 MICRON IN DIAMETER, AND SAID SILVER BEING CAPABLE OF BEING MADE WITHOUT OIL TREATMENT INTO YARN SUITABLE FOR USE AS PILE YARN OF CARPETS AND RUGS.
Claim 2
Dependent Claim
74 words
WASHED, SCORED, DRIED, PICKED, CARDED AND STATIC-FREE WOOL SILVER SUBSTANTIALLY FREE OF GREASY SUBSTANCES AND HAVING ADHERED TO THE FIBERS OF THE SILVER 1/4 TO 1% OF FINELY DIVIDED PARTICLES OF BENTONITE TO THE WEIGHT OF THE WOOL, THE GREATER PROPORTION OF SAID PARTICLES BEING LESS THAN 0.5 MICRON IN DIAMETER, AND SAID SILVER BEING CAPABLE OF BEING MADE WITHOUT OIL TREATMENT INTO YARN SUITABLE FOR USE AS PILE YARN OF CARPETS AND RUGS.
References Cited (Backward Citations)
US149085A
Cited
US1323641A
Cited
US1449826A
Cited
US1608418A
Cited
US1554919A
Cited
US1629241A
Cited
US1943519A
Cited
US2115154A
Cited
US2247308A
Cited
US2362299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |