US2680044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing and distributing device
Assignee: Individual
•
Filing: 1951-09-29
•
Granted: 1954-06-01
•
Expires: 1971-09-29
Abstract
No abstract record available.
Inventors
- 👤 Wesley V Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:57
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/04; A01C23/042; B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/316; G; G05; G05D; G05D11/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2504; Y10T137/4891; Y10T137/8593; Y10T137/87571; Y10T137/87676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US423773A
Cited
US1632806A
Cited
US2103957A
Cited
US2120807A
Cited
US2239502A
Cited
US2513566A
Cited
US2601672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |