Patent US2982227A successfully refreshed from Google Patents.
US2982227A
Expired / Lapsed
US
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Entrance switch mechanism for overhead conveyor
Assignee: Mechanical Handling Systems Inc
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Filing: 1958-12-01
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Granted: 1961-05-02
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Expires: 1978-12-01
Abstract
No abstract record available.
Inventors
- 👤 Leonard J Bishop
- 👤 Klamp Paul
- 👤 Krammer Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:00
CPC Classifications
B; B61; B61B; B61B10/00; B61B10/02; B61B10/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1865788A
Cited
US1917836A
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US1876373A
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US2309587A
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US2812724A
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US2845034A
Cited
US2868138A
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US2868139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |