US3043480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed mechanism for liquefiable comminuted material
Assignee: GEWERKSCHAFT SCHALKER
•
Filing: 1961-02-28
•
Granted: 1962-07-10
•
Expires: 1981-02-28
Abstract
No abstract record available.
Inventors
- 👤 Wittrock Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:21
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B30B11/248; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/53; B29C45/54; B29C45/72; B29C48/00; B29C48/25; B29C48/36; B29C48/375; B29C48/388; B29C48/395; B29C48/40; B29C48/435; B29C48/44; B29C48/50; B29C48/501; B29C48/505; B29C48/67; B29C48/68; B30B11/245; B29C45/58; B29C45/60; B29C48/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US111593A
Cited
US2735310A
Cited
US1468379A
Cited
US2543287A
Cited
US2658604A
Cited
US2900848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |