US2861784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuous production of butter
Assignee: VSCHP VYZKUMNY USTAV STROJU CH
•
Filing: 1956-08-09
•
Granted: 1958-11-25
•
Expires: 1976-08-09
Abstract
No abstract record available.
Inventors
- 👤 Masek Antonin
- 👤 Malik Zdenek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:15
CPC Classifications
A; A01; A01J; A01J15/00; A01J15/10; A01J15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734728A
Cited
US938815A
Cited
US1030203A
Cited
US1132702A
Cited
US1780853A
Cited
US2142344A
Cited
US2212261A
Cited
US2706108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |