US2858019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain cleaning and separating apparatus
Assignee: Individual
•
Filing: 1956-11-23
•
Granted: 1958-10-28
•
Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Harry A Lindahl
- 👤 Strandberg Karl Gustaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:00
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/18; B07B1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2771192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |