Patent US2931947A successfully refreshed from Google Patents.
US2931947A
Expired / Lapsed
US
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Method and device for electrically sterilizing and cleaning milking machines or the like
Assignee: Individual
•
Filing: 1957-05-21
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Granted: 1960-04-05
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Expires: 1977-05-21
Abstract
No abstract record available.
Inventors
- 👤 Fruengel Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:54
CPC Classifications
G; G10; G10K; G10K15/00; G10K15/04; G10K15/06; A; A01; A01J; A01J7/00; A01J7/02; Y; Y10; Y10S; Y10S159/00; Y10S159/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1376180A
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US2301315A
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US2509258A
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US2592520A
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US2617080A
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US2456909A
Cited
US2590168A
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US2559227A
Cited
US2578673A
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US2544477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |