Patent US3542186A successfully refreshed from Google Patents.
US3542186A
Expired / Lapsed
US
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Vibrating conveyors
Assignee: ALLEN HARPER Inc
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Filing: 1968-03-18
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Granted: 1970-11-24
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Expires: 1988-03-18
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Allen
- 👤 Chester H Harper
- 👤 Foye H Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:18
CPC Classifications
B; B65; B65G; B65G27/00; B65G27/10; B65G27/12; B06; B06B; B06B1/00; B06B1/10; B65G2812/00; B65G2812/03; B65G2812/0304; B65G2812/0308; B65G2812/0312
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) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |