US2063908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino-carboxylic acid derivatives in wet treatments
Assignee: Henry Dreyfuss Associates LLC
•
Filing: 1933-10-31
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Granted: 1936-12-15
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Expires: 1953-10-31
Abstract
No abstract record available.
Inventors
- 👤 Dreyfus Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:48
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/325; D06M13/342; C; C09; C09B; C09B67/00; C09B67/0071; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04
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) | 1939-12-15 | 1940-06-15 | 1940-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-15 | 1944-06-15 | 1944-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-15 | 1948-06-15 | 1948-12-15 | $7700.00 | Window Closed / Lapsed |