US2252799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined beet harvesting machine
Assignee: Individual
•
Filing: 1939-01-10
•
Granted: 1941-08-19
•
Expires: 1959-01-10
Abstract
No abstract record available.
Inventors
- 👤 Dallas L Cooper
- 👤 Stanley A Boitz
- 👤 Robert W Sumey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:15
CPC Classifications
A; A01; A01D; A01D23/00; A01D23/04; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2192; Y10T83/2194; Y10T83/647; Y10T83/6476; Y10T83/6584; Y10T83/6633
Claims Analysis
Total Claims: 0
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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) | 1944-08-18 | 1945-02-17 | 1945-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-18 | 1949-02-17 | 1949-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-18 | 1953-02-17 | 1953-08-19 | $7700.00 | Window Closed / Lapsed |