Patent US2701638A successfully refreshed from Google Patents.
US2701638A
Expired / Lapsed
US
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Conveyer cargo selector
Assignee: SC Johnson and Son Inc
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Filing: 1951-03-19
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Granted: 1955-02-08
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Expires: 1971-03-19
Abstract
No abstract record available.
Inventors
- 👤 John S Petro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:27
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/76; B65G47/766
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1655476A
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US1693014A
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GB307852A
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US1712872A
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US1917004A
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US1930318A
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US2329873A
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US2505283A
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US2528868A
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US2570395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-07 | 1958-08-09 | 1959-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-07 | 1962-08-09 | 1963-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-07 | 1966-08-09 | 1967-02-08 | $7700.00 | Window Closed / Lapsed |