Patent US2443593A successfully refreshed from Google Patents.
US2443593A
Expired / Lapsed
US
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Clutch for spinning buckets
Assignee: Akzo Nobel UK PLC
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Filing: 1944-06-22
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Granted: 1948-06-22
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Expires: 1964-06-22
Abstract
No abstract record available.
Inventors
- 👤 Edwin T Birsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:48
CPC Classifications
D; D01; D01D; D01D7/00; D01D7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB184488A
Cited
US1598281A
Cited
US1733703A
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US1917158A
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US2012851A
Cited
US2340368A
Cited
US2329499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |