Patent US4258827A successfully refreshed from Google Patents.
US2925313A
Expired / Lapsed
US
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Siloxane azo dyestuffs
Assignee: Union Carbide Corp
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Filing: 1957-04-29
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Granted: 1960-02-16
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Expires: 1977-04-29
Abstract
No abstract record available.
Inventors
- 👤 Donald L Bailey
- 👤 Ronald M Pike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:07
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/008; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C09B43/00; C09B45/00; Y; Y10; Y10S; Y10S8/00; Y10S8/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
THE METHOD OF DYEING FIBROUS MATERIAL, WHICH COMPRISES EXPOSING SAID FIBROUS MATERIAL TO A DYE BATH CONTAINING A SILOXANE AZO DYESTUFF CONTAINING UNITS WHICH CAN BE REPRESENTED BY THE GENERAL FORMULA:
Claim 2
Independent Claim
31 words
THE METHOD OF DYEING FIBROUS MATERIAL, WHICH COMPRISES EXPOSING SAID FIBROUS MATERIAL TO A DYE BATH CONTAINING A SILOXANE AZO DYESTUFF CONTAINING UNITS WHICH CAN BE REPRESENTED BY THE GENERAL FORMULA:
References Cited (Backward Citations)
US2317965A
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US2715133A
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US2762823A
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US2849333A
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US2832754A
Cited
US2778746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |