US2808151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material separator
Assignee: CLUTE Corp
•
Filing: 1956-04-02
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Granted: 1957-10-01
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Expires: 1976-04-02
Abstract
No abstract record available.
Inventors
- 👤 Francis H Clute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:09
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/02; B04C5/04; A; A63; A63H; A63H29/00; A63H29/22; B04C5/08; B04C5/103; B04C5/14; B04C5/15; H; H02; H02K; H02K11/00; H02K5/00; H02K5/04; H02K5/22; H02K5/225
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) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |