US2652983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverizer and mixer
Assignee: Individual
•
Filing: 1952-01-28
•
Granted: 1953-09-22
•
Expires: 1972-01-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:14
CPC Classifications
B; B01; B01F; B01F29/00; B01F29/20; B01F29/60; B01F29/64; B01F29/40; B01F29/403; B01F29/4035; B01F29/40353
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US688096A
Cited
US721027A
Cited
US1033375A
Cited
US1302294A
Cited
FR550959A
Cited
US2018082A
Cited
US2108502A
Cited
US2267898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |