Patent US2592983A successfully refreshed from Google Patents.
US2592983A
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Apparatus for separating cooking liquor from pulp
Assignee: Individual
•
Filing: 1947-07-17
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Granted: 1952-04-15
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Expires: 1967-07-17
Abstract
No abstract record available.
Inventors
- 👤 Hildebrandt Paul G Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:07
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D29/00; B01D29/11; B01D29/117; B01D29/118; B01D29/60; B01D29/606; B01D29/62; B01D29/64; B01D29/6469; B01D29/6476; B01D29/76; B01D29/80; B01D29/84; B01D29/846; D; D21; D21D; D21D5/00; D21D5/02; B01D29/78
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |