US2420219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter bar control
Assignee: BALDWIN WARD Manufacturing CO Inc
•
Filing: 1944-07-08
•
Granted: 1947-05-06
•
Expires: 1964-07-08
Abstract
No abstract record available.
Inventors
- 👤 Ernest W Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:42
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; A01D34/24; A01D34/243; Y; Y10; Y10S; Y10S56/00; Y10S56/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US547215A
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US1064812A
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US1930643A
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US1925369A
Cited
US1819605A
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US1948895A
Cited
US2082688A
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US2170573A
Cited
US2224576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-05 | 1950-11-04 | 1951-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-05 | 1954-11-04 | 1955-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-05 | 1958-11-04 | 1959-05-06 | $7700.00 | Window Closed / Lapsed |