US2091145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing process
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1934-11-30
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Granted: 1937-08-24
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Expires: 1954-11-30
Abstract
No abstract record available.
Inventors
- 👤 Haddock Norman Hulton
- 👤 Lumsden Colin Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:41
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/32; C09B43/34; D; D06; D06P; D06P1/00; D06P1/0048; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/28; C09B1/32; C09B1/56; C09B1/58; C09B1/585; C09B5/00; C09B5/62; C09B69/00; D06P3/00; D06P3/02; D06P3/04; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
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) | 1940-08-23 | 1941-02-22 | 1941-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-08-23 | 1945-02-22 | 1945-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-08-23 | 1949-02-22 | 1949-08-24 | $7700.00 | Window Closed / Lapsed |