US2952288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Comminuting machine
Assignee: Griffith Laboratories Ltd
•
Filing: 1957-08-02
•
Granted: 1960-09-13
•
Expires: 1977-08-02
Abstract
No abstract record available.
Inventors
- 👤 Schnell Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:28
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1977955A
Cited
US2159670A
Cited
DE895095C
Cited
US2496359A
Cited
US2639747A
Cited
US2594250A
Cited
AT179437B
Cited
FR1111496A
Cited
US2801665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |