US2660190A
Expired / Lapsed
US
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Automatic blending device for liquids
Assignee: Individual
•
Filing: 1949-12-01
•
Granted: 1953-11-24
•
Expires: 1969-12-01
Abstract
No abstract record available.
Inventors
- 👤 Blondel Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:51
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/135; Y; Y10; Y10T; Y10T137/00; Y10T137/5762; Y10T137/5835; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86461; Y10T137/86919; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692; Y10T137/8807; Y10T137/88078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US286070A
Cited
US300170A
Cited
US1372326A
Cited
US1704982A
Cited
US1808231A
Cited
US2254795A
Cited
US2210719A
Cited
US2313846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |