Patent US3191350A successfully refreshed from Google Patents.
US3191350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing apparatus
Assignee: Schaffner Manufacturing Co Inc
•
Filing: 1963-01-08
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Granted: 1965-06-29
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Expires: 1983-01-08
Abstract
No abstract record available.
Inventors
- 👤 Donald R Yokel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:06
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A POLISHING WHEEL FOR POLISHING AN ARTICLE INCLUDING AN ANNULUS OF FLAPS, THE RADIALLY INNER SURFACES OF SAID FLAPS BEING BONDED TOGETHER ALONG A PREDETERMINED LENGTH RADIALLY FROM THE INNER ENDS OF SAID FLAPS TO FORM A HUB FOR SAID WHEEL AND THE REMAINING PORTIONS OF SAID FLAPS EXTENDING AS LEAVES FROM SAID HUBS, THE FLAPS IN SAID ANNULUS INCLUDING A FLAP OF A FIRST TYPE AND A FLAP OF A SECOND TYPE, AND SAID FLAPS BEING SO FORMED THAT WHEN SAID FLAP OF SAID FIRT TYPE AND SAID FLAP OF SAID SECOND TYPE
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |