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Patent US1699808A successfully refreshed from Google Patents.
US1699808A
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US
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Method of treating waste liquor
Assignee: Individual
•
Filing: 1926-04-15
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Granted: 1929-01-22
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Expires: 1946-04-15
Abstract
No abstract record available.
Inventors
- 👤 Rinman Erik Ludvig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:07
CPC Classifications
D; D21; D21C; D21C11/00; D21C11/0064; D21C11/0071; D21C11/0085; Y; Y10; Y10S; Y10S423/00; Y10S423/03
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) | 1932-01-22 | 1932-07-23 | 1933-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-01-22 | 1936-07-23 | 1937-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-01-22 | 1940-07-23 | 1941-01-22 | $7700.00 | Window Closed / Lapsed |