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Patent US2968400A successfully refreshed from Google Patents.
US2968400A
Expired / Lapsed
US
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Material collector
Assignee: CLUTE Corp
•
Filing: 1957-11-12
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Granted: 1961-01-17
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Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Francis H Clute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:21
CPC Classifications
B; B07; B07B; B07B7/00; B07B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US268305A
Cited
US2758713A
Cited
US1135594A
Cited
US1116485A
Cited
GB103230A
Cited
US1742812A
Cited
FR1026035A
Cited
US2808151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |