Patent US3034274A successfully refreshed from Google Patents.
US3034274A
Expired / Lapsed
US
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Demountable cutter bar structure for tractor
Assignee: Individual
•
Filing: 1960-06-30
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Granted: 1962-05-15
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Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 Johnathan H Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:14
CPC Classifications
A; A01; A01D; A01D75/00; A01D75/30; A01D34/00; A01D34/01; A01D34/02; A01D34/03; Y; Y10; Y10S; Y10S56/00; Y10S56/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2150350A
Cited
US2861409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |