Patent US2020632A successfully refreshed from Google Patents.
US2020632A
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Material handling mechanism
Assignee: Jeffrey Manufacturing Co
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Filing: 1932-02-17
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Granted: 1935-11-12
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Expires: 1952-02-17
Abstract
No abstract record available.
Inventors
- 👤 Samuel T Beeker
- 👤 John S Beltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:11
CPC Classifications
B; B66; B66C; B66C11/00; B66C11/16; B66C11/20
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) | 1938-11-11 | 1939-05-13 | 1939-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-11-11 | 1943-05-13 | 1943-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-11-11 | 1947-05-13 | 1947-11-12 | $7700.00 | Window Closed / Lapsed |