US2718871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum control for magnetic milking machines
Assignee: Individual
•
Filing: 1951-04-11
•
Granted: 1955-09-27
•
Expires: 1971-04-11
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Robley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:05
CPC Classifications
A; A01; A01J; A01J5/00; A01J5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1386498A
Cited
US866579A
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US942482A
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US1169980A
Cited
US1329451A
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US1912994A
Cited
US2007163A
Cited
US2023486A
Cited
US2311921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |