US2696636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtering and spinning apparatus
Assignee: Akzo Nobel UK PLC
•
Filing: 1950-02-23
•
Granted: 1954-12-14
•
Expires: 1970-02-23
Abstract
No abstract record available.
Inventors
- 👤 Henry J Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:26
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/10; D01D1/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US433710A
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US702382A
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US2574521A
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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) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |