Patent US3619953A successfully refreshed from Google Patents.
US3619953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for rounding end of flexible plastic wire
Assignee: Kao Corp
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Filing: 1970-01-07
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Granted: 1971-11-16
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Expires: 1990-01-07
Abstract
Abstract AN APPARATUS FOR ROUNDING ENDS OF FLEXIBLE WIRE ELEMENTS OR BRUSH HAIR ELEMENTS, INCLUDING A CONTINUOUSLY TRANVELING TRANSFER CHAIN AND A WIRE HOLDER MEANS ATTACHED TO THE TRANSFER MEANS FOR MOVEMENT THEREWITH. THE WIRE HOLDER MEANS IS MOUNTED FOR ROTATION ABOUT AN AXIS PERPENDICULAR TO THE ADVANCING DIRECTION OF THE TRANSFER CHAIN. AN ENDLESS GRINDING MEANS HAVING A WAVE-LIKE GRINDING SURFACE THEREON IS DISPOSED ABOVE THE TRANSFER CHAIN AND IS MOVED IN A DIRECTION TRANSVERSE TO THE ADVANCING DIRECTION OF THE TRANSFER CHAIN, WHEREBY THE TIP ENDS OF THE WIRE ELEMENTS CONTACT THE GRINDING SURFACE AND ARE CONTINUOUSLY GROUND AND POLISHED.
Inventors
- 👤 Minoru Hosoya
- 👤 Masaaki Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:21
CPC Classifications
A; A46; A46D; A46D9/00; B; B24; B24B; B24B19/00; B24B19/16
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |