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US2980235A
Expired / Lapsed
US
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Arrangement to produce electrical signals in belt conveyors using containers
Assignee: International Standard Electric Corp
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Filing: 1957-08-01
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Granted: 1961-04-18
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Expires: 1977-08-01
Abstract
No abstract record available.
Inventors
- 👤 Mittag Fritz
- 👤 Lindner Jurgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:05
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/34; B65G47/46; B65G47/48; B65G47/49; B65G47/496
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |