Patent US2828950A successfully refreshed from Google Patents.
US2828950A
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US
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Liquid stirring and dispensing mechanism
Assignee: Individual
•
Filing: 1957-03-13
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Granted: 1958-04-01
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Expires: 1977-03-13
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Stilwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:53
CPC Classifications
A; A47; A47J; A47J43/00; A47J43/04; A47J43/046; A47J43/0465; A47J27/00; A47J27/004; B; B01; B01F; B01F33/00; B01F33/45; B01F33/453; B01F33/4534
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |