US2145851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacture of pulp
Assignee: Valmet AB
•
Filing: 1934-09-19
•
Granted: 1939-02-07
•
Expires: 1954-09-19
Abstract
No abstract record available.
Inventors
- 👤 Asplund Arne Johan Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:15
CPC Classifications
B; B02; B02C; B02C13/00
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) | 1942-02-06 | 1942-08-08 | 1943-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-02-06 | 1946-08-08 | 1947-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-02-06 | 1950-08-08 | 1951-02-07 | $7700.00 | Window Closed / Lapsed |