Patent US3587997A successfully refreshed from Google Patents.
Patent US3829360A successfully refreshed from Google Patents.
US3829360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller having a cylindrical surface of flat belts and corrugated belts
Assignee: Finckh Hermann Metalltuch und Maschinenfabrik
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Filing: 1972-09-26
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Granted: 1974-08-13
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Expires: 1992-09-26
Abstract
Abstract A roller, particularly for using in paper making machines, and providing flow-through openings between the body of the roller and a woven cover enclosing the body. The body is of cylindrical configuration and has peripherally disposed flat belts which are connected together by belts that are corrugated in the peripheral direction. The flowthrough openings are provided at the connecting points between the flat and corrugated belts.
Inventors
- 👤 E Holz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:57
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/44; D21F1/46
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) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |