US2903197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mills, particularly granulating and colloid mills
Assignee: Individual
•
Filing: 1954-08-04
•
Granted: 1959-09-08
•
Expires: 1974-08-04
Abstract
No abstract record available.
Inventors
- 👤 Willems Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:20
CPC Classifications
B; B02; B02C; B02C7/00; B02C7/02; B02C7/08; B01; B01F; B01F27/00; B01F27/80; B01F27/81; B01F27/812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB455890A
Cited
US90531A
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US109542A
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US151025A
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US272334A
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US938466A
Cited
GB191019762A
Cited
US1135017A
Cited
US1483742A
Cited
US1962462A
Cited
US2176892A
Cited
US2437147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |