Patent CH509928A successfully refreshed from Google Patents.
Patent US2170573A successfully refreshed from Google Patents.
US2170573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain pan raising and lowering mechanism
Assignee: GLEANER HARVESTER Corp
•
Filing: 1937-10-18
•
Granted: 1939-08-22
•
Expires: 1957-10-18
Abstract
No abstract record available.
Inventors
- 👤 Torvald N Pierson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:59
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/12; A01D41/14; A01D41/145; A01D41/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-08-21 | 1943-02-20 | 1943-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-08-21 | 1947-02-20 | 1947-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-08-21 | 1951-02-20 | 1951-08-22 | $7700.00 | Window Closed / Lapsed |