US2355091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the treatment and removal of chemicals from cooked or digested fiber pulp
Assignee: BROWN PAPER MILL Co Inc
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Filing: 1939-03-16
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Granted: 1944-08-08
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Expires: 1959-03-16
Abstract
No abstract record available.
Inventors
- 👤 Manuel C Mcdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:15
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/02; B30B9/12; B30B9/121; D; D21; D21C; D21C9/00; D21C9/02
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) | 1947-08-08 | 1948-02-07 | 1948-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-08-08 | 1952-02-07 | 1952-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-08-08 | 1956-02-07 | 1956-08-08 | $7700.00 | Window Closed / Lapsed |