US3451575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor bucket with hydraulically-operated grille-like lid
Assignee: GEZA PETRO JR
•
Filing: 1967-09-15
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Granted: 1969-06-24
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Expires: 1987-09-15
Abstract
No abstract record available.
Inventors
- 👤 Geza Petro Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:16
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; E02F3/402; E02F3/404
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3057496A
Cited
US3077999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |