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US2434178A
Expired / Lapsed
US
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Metachkome dyeing with a colloid
Assignee: —
•
Filing: —
•
Granted: 1948-01-06
•
Expires: 1965-01-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:55
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/46; D06P1/48; D06P1/52; D06P1/5207; D06P1/5214; D06P1/5228; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |