US2838080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulp wood chipper feeds
Assignee: Canadian Forest Products Ltd
•
Filing: 1955-06-13
•
Granted: 1958-06-10
•
Expires: 1975-06-13
Abstract
No abstract record available.
Inventors
- 👤 Springate Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:47
CPC Classifications
B; B27; B27L; B27L11/00; B27L11/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US8069A
Cited
US1411706A
Cited
US2144335A
Cited
CH230540A
Cited
US2583708A
Cited
US2497488A
Cited
US2722305A
Cited
DE841642C
Cited
US2652077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |