US2644677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for agitating liquids
Assignee: Individual
•
Filing: 1950-07-25
•
Granted: 1953-07-07
•
Expires: 1970-07-25
Abstract
No abstract record available.
Inventors
- 👤 Simon Hans Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:04
CPC Classifications
D; D06; D06F; D06F7/00; D06F7/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18416; Y10T74/18456
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US131660A
Cited
US614522A
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US1529770A
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US1864149A
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US1755341A
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US1929377A
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US1891122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |