US2206249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agents of capillary action from alkyl-amino-carboxylic acids with tertiary or quaternary bound nitrogen
Assignee: GAF Chemicals Corp
•
Filing: 1935-06-14
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Granted: 1940-07-02
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Expires: 1955-06-14
Abstract
No abstract record available.
Inventors
- 👤 Daimler Karl
- 👤 Platz Carl
- 👤 Bucking Fritz
- 👤 Rosenbach Johann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:11
CPC Classifications
C; C07; C07C; C07C227/00; C07C227/26; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
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) | 1943-07-02 | 1944-01-01 | 1944-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-02 | 1948-01-01 | 1948-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-02 | 1952-01-01 | 1952-07-02 | $7700.00 | Window Closed / Lapsed |