Patent US3115401A successfully refreshed from Google Patents.
US3115401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive tool
Assignee: Motors Liquidation Co
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Filing: 1961-07-28
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Granted: 1963-12-24
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Expires: 1981-07-28
Abstract
No abstract record available.
Inventors
- 👤 Kenneth D Downing
- 👤 Harry D Hall
- 👤 Irvin E Poston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:18
CPC Classifications
B; B24; B24D; B24D18/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
THE METHOD OF MAKING POLISHING WHEELS OR THE LIKE WHICH COMPRISE A METAL CORE HAVING A PERIPHERAL SURFACE COATED BY A CONTINUOUS LAYER OF A SYNTHETIC RESIN, THE STEPS COMPRISING PROVIDING A METAL CORE SUBSTANTIALLY OF THE SHAPE OF THE DESIRED POLISHING WHEEL HAVING PERIPHERAL POLISHING SURFACES, PREHEATING SAID CORE TO AT LEAST THE MELTING TEMPRATURE OF SAID RESIN, IMMERSING SAID CORE IN A GAS FLUIDIZED BED OF SAID RESIN IN POWDERED FORM FOR A TIME SUFFICIENT TO CAUSE THE RESIN PARTICLES IN CONTACT WITH SAID CORE TO MELT AND FUSE TO FORM A UNIFORM CONTINUOUS SMOOTH COATING THEREON, REMOVING SAID CORE FROM THE FLUIDIZED BED AND WHILE THE COATING IS STILL IN A SOFT CONDITION APPLYING A LAYER OF ABRASIVE POWDER TO SAID BINDER SURFACE.
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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |