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US1433357A
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US
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Assignee: Individual
•
Filing: 1920-12-17
•
Granted: 1922-10-24
•
Expires: 1940-12-17
Abstract
No abstract record available.
Inventors
- 👤 James G Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:59
CPC Classifications
B; B01; B01D; B01D37/00; B01D21/00; B01D21/0006; B01D21/24; B01D21/2427; B01D21/30; B01D21/307; B01D21/34; B01D24/00; B01D24/02; B01D24/10; B01D24/12; B01D24/46; B01D24/4631; B01D24/4636; B01D24/48; B01D24/4869
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) | 1925-10-23 | 1926-04-24 | 1926-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-10-23 | 1930-04-24 | 1930-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-10-23 | 1934-04-24 | 1934-10-24 | $7700.00 | Window Closed / Lapsed |