US2885247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-friction top roll
Assignee: Whitin Machine Works Inc
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Filing: 1957-05-24
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Granted: 1959-05-05
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Expires: 1977-05-24
Abstract
No abstract record available.
Inventors
- 👤 Otto W Schlums
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:30
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/006; D; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/74; F16C33/00; F16C33/30; F16C33/66; F16C33/6603; F16C33/6607; D01H2700/00; D01H2700/245; F16C2340/00; F16C2340/18
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) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |