US2190848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeings
Assignee: GAF Chemicals Corp
•
Filing: 1937-05-20
•
Granted: 1940-02-20
•
Expires: 1957-05-20
Abstract
No abstract record available.
Inventors
- 👤 Petersen Siegfried
- 👤 Taube Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:34
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06; B; B23; B23K; B23K11/00; B23K11/08; B23K11/087; B23K11/0873; D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/6426; D06P1/645; D06P1/649; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
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) | 1943-02-19 | 1943-08-21 | 1944-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-19 | 1947-08-21 | 1948-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-19 | 1951-08-21 | 1952-02-20 | $7700.00 | Window Closed / Lapsed |