Patent US1817649A successfully refreshed from Google Patents.
US1817649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Settling apparatus
Assignee: Individual
•
Filing: 1928-01-19
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Granted: 1931-08-04
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Expires: 1948-01-19
Abstract
No abstract record available.
Inventors
- 👤 Horace S Rumsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:00
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/10; B01D21/12; B01D21/14; B01D21/003; B01D21/18; B01D21/186; B01D21/24; B01D21/2405; B01D21/2427; B01D21/245; B01D2221/00; B01D2221/06
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) | 1934-08-03 | 1935-02-02 | 1935-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-08-03 | 1939-02-02 | 1939-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-08-03 | 1943-02-02 | 1943-08-04 | $7700.00 | Window Closed / Lapsed |