US3543483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator apparatus
Assignee: BUELL ENG CO
•
Filing: 1967-07-06
•
Granted: 1970-12-01
•
Expires: 1987-07-06
Abstract
No abstract record available.
Inventors
- 👤 John James Sheehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:11
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/04; B01D46/42; B01D46/4245; B01D46/66; B01D46/74; B01D46/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB281048A
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GB614540A
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FR931253A
Cited
US2653444A
Cited
DE880535C
Cited
US2932054A
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FR1274656A
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US3310175A
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US3377781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |