US2872019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-jamming vibratory hopper
Assignee: CHASE EQUIPMENT Corp
•
Filing: 1957-01-24
•
Granted: 1959-02-03
•
Expires: 1977-01-24
Abstract
No abstract record available.
Inventors
- 👤 Owen Claude Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:29
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1407; B65G47/1414; B65G47/1421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1336785A
Cited
US1692456A
Cited
US2275971A
Cited
CH262606A
Cited
FR1094573A
Cited
US2798585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |