US2474909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixation of pigments on textile materials
Assignee: Celanese Corp
•
Filing: 1945-05-08
•
Granted: 1949-07-05
•
Expires: 1965-05-08
Abstract
No abstract record available.
Inventors
- 👤 Olpin Henry Charles
- 👤 Law Philip Broughton
- 👤 Gibson Sydney Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:43
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2222350A
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US2287597A
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US2123152A
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US2169546A
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US2334545A
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US2248696A
Cited
US2304113A
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US2418696A
Cited
US2405863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |