Patent US3075412A successfully refreshed from Google Patents.
US3075412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ridge reamer
Assignee: Ammco Tools Inc
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Filing: 1960-06-27
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Granted: 1963-01-29
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Expires: 1980-06-27
Abstract
No abstract record available.
Inventors
- 👤 Walter P Kushmuk
- 👤 Otto T Handwerk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:43
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; B23B5/161; B23B5/162; B23D; B23D77/00; B23D77/02; B23D77/04; B23D77/042; B23D77/14; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/557; Y10T408/558; Y10T408/5583; Y10T408/5584; Y10T408/83; Y10T408/85; Y10T82/00; Y10T82/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A CYLINDER RIDGE REAMER OF THE TYPE ADAPTED TO REMOVE A RING-WEAR RIDGE FORMED ON THE WALL OF AN ENGINE CYLINDER, COMPRISING A HEAD MEMBER, MEANS FOR SUPPORTING SAID HEAD MEMBER FOR ROTATIONAL MOVEMENT RELATIVE TO SAID CYLINDER, AN ARM, MEANS COUPLING SAID ARM TO SAID HEAD MEMBER AT BOTH OF THE ENDS OF SAID ARM AND INCLUDING AT LEAST ONE LINK MEMBER PIVOTALLY CONNECTED TO SAID HEAD MEMBER AND TO SAID ARM, A CUTTING BLADE CARRIED BY SAID ARM AND INCLUDING A RACK ON SAID ARM AND A PINION ENGAGEABLE THEREWITH AND MEANS RESPONSIVE TO THE ROTATION OF SAID HEAD MEMBER FOR APPLYING A RADIALLY DIRECTED FORCE TO SAID CUTTING BLADE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |