Patent US2570486A successfully refreshed from Google Patents.
US2570486A
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Deflection tensiometer
Assignee: Akzo Nobel UK PLC
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Filing: 1947-02-12
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Granted: 1951-10-09
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Expires: 1967-02-12
Abstract
No abstract record available.
Inventors
- 👤 Ingham S Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:48
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/04; G01L5/06; B; B65; B65H; B65H59/00; B65H59/40; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |