Patent US1692852A successfully refreshed from Google Patents.
US1692852A
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US
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Assignee: Individual
•
Filing: 1925-11-25
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Granted: 1928-11-27
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Expires: 1945-11-25
Abstract
No abstract record available.
Inventors
- 👤 Fred C Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:57
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/62; B01D29/64; B01D29/6407; B01D29/6415; B01D29/70
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) | 1931-11-27 | 1932-05-28 | 1932-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-11-27 | 1936-05-28 | 1936-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-11-27 | 1940-05-28 | 1940-11-27 | $7700.00 | Window Closed / Lapsed |