Patent US2804815A successfully refreshed from Google Patents.
US2804815A
Expired / Lapsed
US
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Cultivator shield
Assignee: Individual
•
Filing: 1954-02-15
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Granted: 1957-09-03
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Expires: 1974-02-15
Abstract
No abstract record available.
Inventors
- 👤 Lynn M Dollen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:28
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/20; A01B39/26; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US68165A
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US249740A
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US463933A
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US668136A
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US944770A
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US2319047A
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US2417597A
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US2597111A
Cited
US2665994A
Cited
US2662462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |