US2186894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating fibrous materials
Assignee: General Aniline Works Inc
•
Filing: 1938-01-08
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Granted: 1940-01-09
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Expires: 1958-01-08
Abstract
No abstract record available.
Inventors
- 👤 Brodersen Karl
- 👤 Quaedvlieg Matthias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:13
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/6426; C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C07D263/28; D06M; D06M13/00; D06M13/322; D06M13/35; D06M13/352; D06M13/355; D06M13/402; D06M13/432
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) | 1943-01-08 | 1943-07-10 | 1944-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-08 | 1947-07-10 | 1948-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-08 | 1951-07-10 | 1952-01-09 | $7700.00 | Window Closed / Lapsed |