Patent US2680411A successfully refreshed from Google Patents.
US2680411A
Expired / Lapsed
US
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Diaphragm milk releaser
Assignee: International Motors LLC
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Filing: 1950-07-15
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Granted: 1954-06-08
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Expires: 1970-07-15
Abstract
No abstract record available.
Inventors
- 👤 Harold W Hein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:51
CPC Classifications
A; A01; A01J; A01J5/00; A01J5/04; A01J5/042
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) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |