Patent US2992061A successfully refreshed from Google Patents.
US2992061A
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Reducing vat dyes with hydrazineborane compounds
Assignee: EIDP Inc
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Filing: 1958-08-04
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Granted: 1961-07-11
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Expires: 1978-08-04
Abstract
No abstract record available.
Inventors
- 👤 Richard A Fleming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:20
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/22; D06P1/221; C; C07; C07F; C07F5/00; Y; Y10; Y10S; Y10S8/00; Y10S8/937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
IN A PROCESS FOR VAT DYEING TEXTILE FIBERS WHEREIN A VAT DYE IS SOLUBILIZED IN AN AQUEOUS ALKALINE SOLUTION AND ABSORBED BY THE FIBERS, THE STEP OF REDUCING AND SOLUBILIZING SAID DYE WITH A COMPOUND SELECTED FROM THE BORANES AND DIBORANES OF
Claim 2
Dependent Claim
42 words
IN A PROCESS FOR VAT DYEING TEXTILE FIBERS WHEREIN A VAT DYE IS SOLUBILIZED IN AN AQUEOUS ALKALINE SOLUTION AND ABSORBED BY THE FIBERS, THE STEP OF REDUCING AND SOLUBILIZING SAID DYE WITH A COMPOUND SELECTED FROM THE BORANES AND DIBORANES OF
References Cited (Backward Citations)
US2827357A
Cited
US2745788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |