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US2109511A
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Automatic vacuum control valve for milking apparatus
Assignee: RICHARD J SIMON
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Filing: 1936-02-11
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Granted: 1938-03-01
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Expires: 1956-02-11
Abstract
No abstract record available.
Inventors
- 👤 Otto A Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:33
CPC Classifications
A; A01; A01J; A01J5/00; A01J5/04; F; F16; F16L; F16L37/00; F16L37/28; F16L37/38; F16L37/40; F16L37/413; F16L37/42; Y; Y10; Y10T; Y10T137/00; Y10T137/8376
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-02-28 | 1941-08-30 | 1942-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-02-28 | 1945-08-30 | 1946-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-02-28 | 1949-08-30 | 1950-03-01 | $7700.00 | Window Closed / Lapsed |