US2321816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing fast dyeings on fibrous materials
Assignee: GAF Chemicals Corp
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Filing: 1941-02-07
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Granted: 1943-06-15
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Expires: 1961-02-07
Abstract
No abstract record available.
Inventors
- 👤 Huss Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:12
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/08; D; D06; D06P; D06P1/00; D06P1/02; D06P1/12; D06P1/122; D06P3/00; D06P3/02; D06P3/04; D06P3/14; D06P3/22; D06P3/58; D06P3/60; D06P3/68; D06P3/82; D06P3/8204; D06P3/8219; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-06-14 | 1946-12-14 | 1947-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-14 | 1950-12-14 | 1951-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-14 | 1954-12-14 | 1955-06-15 | $7700.00 | Window Closed / Lapsed |