Patent US3212841A successfully refreshed from Google Patents.
US3212841A
Expired / Lapsed
US
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Polyester yellow dyeing
Assignee: GAF Chemicals Corp
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Filing: 1963-10-15
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Granted: 1965-10-19
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Expires: 1983-10-15
Abstract
No abstract record available.
Inventors
- 👤 Lester N Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:02
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/34; C09B29/36; C09B29/3604; C09B29/3647; C09B29/3652; C09B29/366; D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/54; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A PROCESS FOR DYEING POLYESTER-CONTAINING MATERIALS WHICH COMPRISES CONTACTING SAID MATERIAL WITH A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
17 words
A PROCESS FOR DYEING POLYESTER-CONTAINING MATERIALS WHICH COMPRISES CONTACTING SAID MATERIAL WITH A COMPOUND OF THE FORMULA
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |