Patent US2660755A successfully refreshed from Google Patents.
US2660755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stuffer valve
Assignee: Cincinnati Butchers Supply Co
•
Filing: 1952-03-04
•
Granted: 1953-12-01
•
Expires: 1972-03-04
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Zaenkert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:51
CPC Classifications
A; A22; A22C; A22C11/00; A22C11/02; B; B02; B02C; B02C18/00; B02C18/06; B02C18/16
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) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |