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US2390539A
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Assignee: Individual
•
Filing: 1943-06-19
•
Granted: 1945-12-11
•
Expires: 1963-06-19
Abstract
No abstract record available.
Inventors
- 👤 Katcher Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:54
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/01; B01D29/03; B01D29/50; B01D29/56; B01D29/58; B01D29/62; B01D29/66; B01D29/668; B01D35/00; B01D35/14; B01D35/143; B01D35/147; B01D2201/00; B01D2201/18; B01D2201/188; B01D2201/28; B01D2201/287; Y; Y10; Y10S; Y10S116/00; Y10S116/42; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/8158; Y10T137/8326
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) | 1948-12-10 | 1949-06-11 | 1949-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-10 | 1953-06-11 | 1953-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-10 | 1957-06-11 | 1957-12-11 | $7700.00 | Window Closed / Lapsed |