US3409173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheeled machines for spreading granular particles
Assignee: KARL DAVID EJNARSSON
•
Filing: 1966-04-18
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Granted: 1968-11-05
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Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 Ejnarsson Karl David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:59
CPC Classifications
A; A01; A01C; A01C15/00; E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/2005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US266157A
Cited
US1040888A
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US1152303A
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US1417709A
Cited
US1920206A
Cited
US2361654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |