Patent US2981052A successfully refreshed from Google Patents.
US2981052A
Expired / Lapsed
US
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Twine
Assignee: Akzo Nobel UK PLC
•
Filing: 1957-11-22
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Granted: 1961-04-25
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Expires: 1977-11-22
Abstract
No abstract record available.
Inventors
- 👤 Machenry Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:18
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/02; D02G3/06; D07; D07B; D07B5/00; D07B5/02; D07B2201/00; D07B2201/20; D07B2201/2001; D07B2201/2002; D07B2201/2003; D10; D10B; D10B2201/00; D10B2201/20; D10B2201/22; D10B2505/00; D10B2505/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |