Patent US2558992A successfully refreshed from Google Patents.
US2558992A
Expired / Lapsed
US
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Colored nylon article and method
Assignee: —
•
Filing: —
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Granted: 1951-07-03
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Expires: 1968-07-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:35
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/24; D06P3/241; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; D01; D01F; D01F1/00; D01F1/02; D01F1/04; D06P3/242; B; B29; B29K; B29K2105/00; B29K2105/0005; B29K2105/0032
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
A METHOD FOR MAKING A COLORED ARTICLE OF IRREGULAR SECTION FROM A SYNTHETIC LINEAR POLYAMIDE, WHICH METHOD COMPRISES UNIFORMLY DISPERSING UP TO 4% OF A LIGHT COLORED METAL OXIDE CAPABLE OF WITHSTANDING TEMPERATURES OF 600* F. WITHOUT DECOMPOSITION THROUGHOUT THE MASS OF A BATCH OF THE POLYAMIDE FROM WHICH THE ARTICLE IS TO BE FORMED, WHEREBY TO IMPART SUBSTANTIAL OPACITY TO THE ARTICLE, AND, AFTER FORMATION OF THE ARTICLE, UNIFORMLY DYEING A SHALLOW SURFACE LAYER THEREOF BY IMMERSION OF THE ARTICLE IN AN AQUEOUS SOLUTION OF AN ORGANIC DYE.
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) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |