US3429418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing and spreading apparatus
Assignee: SWENSON SPREADER AND Manufacturing CO
•
Filing: 1967-12-13
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Granted: 1969-02-25
•
Expires: 1987-12-13
Abstract
No abstract record available.
Inventors
- 👤 Clas O F Fyrk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:53
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; E01C19/203; A; A01; A01C; A01C17/00; B; B01; B01F; B01F33/00; B01F33/50; B01F33/502; B01F33/5021; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/23; B01F27/232; B01F27/2321; Y; Y10; Y10S; Y10S366/00; Y10S366/601
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2550872A
Cited
US2692702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |