Patent US2822838A successfully refreshed from Google Patents.
US2822838A
Expired / Lapsed
US
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Rotary machines for the shredding of wood into shaped particles
Assignee: Allwood Inc
•
Filing: 1953-08-12
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Granted: 1958-02-11
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Expires: 1973-08-12
Abstract
No abstract record available.
Inventors
- 👤 Kull Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:02
CPC Classifications
B; B27; B27L; B27L11/00; B27L11/08; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1952; Y10T407/1962
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1194865A
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US978414A
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US953359A
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US1495067A
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US1815324A
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US1778769A
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US1834034A
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US2453797A
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US2608225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |