US3066831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for feeding comminuted material from a hopper
Assignee: Individual
•
Filing: 1960-05-05
•
Granted: 1962-12-04
•
Expires: 1980-05-05
Abstract
No abstract record available.
Inventors
- 👤 Thompson Lee Lavere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:17
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/06; E21B21/062; B; B01; B01F; B01F35/00; B01F35/71; B01F35/717; B01F35/7173; B01F35/71731; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123223A
Cited
CA571420A
Cited
US788902A
Cited
US1733833A
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US1898094A
Cited
US2338034A
Cited
US2686045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |