Patent US3609919A successfully refreshed from Google Patents.
US3609919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buffing machine for flexible material such as leather
Assignee: Badische Maschinenfabrik GmbH
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Filing: 1970-01-16
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Granted: 1971-10-05
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Expires: 1990-01-16
Abstract
Abstract A BUFFING MACHINE FOR FLEXIBLE MATERIAL, SUCH AS LEATHER, HAVING ONE OR MORE BUFFING ROLLS OR ONE OR MORE ROLLS PROVIDING WITH BUFFING BELTS OR STRIPS, AT LEAST ONE REMOTE CONTROLLABLE COUNTER PRESSURE ROLL, AND A PLURALITY OF COUNTER PRESSURE ROLLS ARRANGED ON A CARRIER WITH A COUNTER PRESSURE ROLL WHICH IS DISPOSED OPPOSITE THE BUFFING ROLL COOPERATING WITH THE BUFFING ROLL AND BEING ADAPTED TO BE PUT INTO AN ADJUSTABLE WORKING POSITION OR DISPLACED OUT OF THE WORKING POSITION.
Inventors
- 👤 Cornelius Van Dorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:05
CPC Classifications
C; C14; C14B; C14B1/00; C14B1/44; C14B1/46; B; B24; B24B; B24B21/00; B24B21/18
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |