US3187997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontal type centrifugal separator
Assignee: Ametek Inc
•
Filing: 1962-02-12
•
Granted: 1965-06-08
•
Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 Frederic P Gooch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:46
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/20; B04B11/00; B04B11/08; B04B11/082; B04B2001/2033; B04B2001/2083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2622794A
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US2649816A
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US2740580A
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US2743865A
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US2733856A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |