US2838247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fine grain mill
Assignee: Individual
•
Filing: 1956-05-01
•
Granted: 1958-06-10
•
Expires: 1976-05-01
Abstract
No abstract record available.
Inventors
- 👤 Hauser Paul August Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:59
CPC Classifications
B; B02; B02C; B02C7/00; B02C7/11; B02C7/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US237120A
Cited
GB191413214A
Cited
GB406331A
Cited
US2212544A
Cited
US2296564A
Cited
US2389816A
Cited
US2468337A
Cited
US2513752A
Cited
US2580579A
Cited
DE902574C
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 |