US3450213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scraper implement
Assignee: Deere and Co
•
Filing: 1965-07-01
•
Granted: 1969-06-17
•
Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 John H Creighton
- 👤 Francis M Brinkmeyer
- 👤 Paul E Hanser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:15
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7604; E02F3/7636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2130274A
Cited
US2259747A
Cited
US2494324A
Cited
US2655743A
Cited
US3038268A
Cited
US3022585A
Cited
US3052997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |