Patent US2997020A successfully refreshed from Google Patents.
US2997020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monitor jar for automatic milking system
Assignee: RITE WAY DAIRY FARM EQUIPMENT
•
Filing: 1959-03-03
•
Granted: 1961-08-22
•
Expires: 1979-03-03
Abstract
No abstract record available.
Inventors
- 👤 David R Barkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:26
CPC Classifications
A; A01; A01J; A01J5/00; A01J5/007; A01J5/01; Y; Y10; Y10S; Y10S119/00; Y10S119/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |