Patent US3778342A successfully refreshed from Google Patents.
US3778342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wear resistant outsert for a paper machine foil
Assignee: Jwi Ltd
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Filing: 1971-04-12
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Granted: 1973-12-11
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Expires: 1991-04-12
Abstract
Abstract A paper machine foil having a wear resistant outset releasable yet securely positioned thereon to form the supporting surface and leading edge of the foil. The leading edge of the outset is formed by a small radius of curve and a wear resistant coating is applied to the supporting surface, the leading edge and a portion of the doctoring surface of the outset.
Inventors
- 👤 F Charbonneau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:51
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/483
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |