Patent US6416551B1 successfully refreshed from Google Patents.
US2814032A
Expired / Lapsed
US
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Protective apparatus for materialhandling equipment
Assignee: Femco Inc
•
Filing: 1956-01-20
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Granted: 1957-11-19
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Expires: 1976-01-20
Abstract
No abstract record available.
Inventors
- 👤 Norman F Agnew
- 👤 Andrew J Sorensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/18; B66C13/22; B66C2700/00; B66C2700/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1718528A
Cited
US1917243A
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US2362918A
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US2355395A
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US2580155A
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US2753550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |