US2732669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method of oil polishing
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:17
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/04; B24B21/12; B24B21/14; B24B1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
IN AN ASSEMBLY FOR POLISHING A FLAT METAL WORKPIECE, AN ABRASIVE BELT ADAPTED TO CONTACT THE WORKPIECE, MEANS FOR INTERPOSING LUBRICATING OIL BETWEEN SAID BELT AND WORKPIECE, A DRIVEN ROLL DRIVING SAID BELT AND URGING THE BELT AGAINST SAID WORKPIECE, AND FRICTION DRIVE MEANS ON SAID ROLL ENGAGING SAID BELT AND DEFINED BY A RESILIENT MATRIX PERIPHERAL CONTACT PORTION HAVING THEREIN A PLURALITY OF MINUTE CHAMBERS, THOSE CHAMBERS WITHIN SAID MATRIC BE-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |