US2686336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kneading pump
Assignee: Leistritz AG
•
Filing: 1951-11-23
•
Granted: 1954-08-17
•
Expires: 1971-11-23
Abstract
No abstract record available.
Inventors
- 👤 Kleinlein Fritz
- 👤 Bernhardt Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:01
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/46; B29B7/48; B29B7/488; B29B7/489; B29B7/484; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/40; B29C48/41; B29C48/42; B29C48/50; B29C48/505; B29C48/535; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B30B11/243
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) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |