Patent US719443A successfully refreshed from Google Patents.
US719443A
Expired / Lapsed
US
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Vacuum-regulating device for milking-machines.
Assignee: Individual
•
Filing: 1902-05-02
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Granted: 1903-02-03
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Expires: 1922-05-02
Abstract
No abstract record available.
Inventors
- 👤 Francis M Devore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:49
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7897; Y10T137/8593; Y10T137/87571
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) | 1906-02-02 | 1906-08-04 | 1907-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-02-02 | 1910-08-04 | 1911-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-02-02 | 1914-08-04 | 1915-02-03 | $7700.00 | Window Closed / Lapsed |