Patent US2304672A successfully refreshed from Google Patents.
US2304672A
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US
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Material handling apparatus
Assignee: BELL CLAY Co
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Filing: 1941-10-22
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Granted: 1942-12-08
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Expires: 1961-10-22
Abstract
No abstract record available.
Inventors
- 👤 Bell Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:27
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/352
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-12-07 | 1946-06-08 | 1946-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-12-07 | 1950-06-08 | 1950-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-12-07 | 1954-06-08 | 1954-12-08 | $7700.00 | Window Closed / Lapsed |