Patent US3116986A successfully refreshed from Google Patents.
US3116986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making cold-molded abrasive wheel
Assignee: Milacron Inc
•
Filing: 1960-03-25
•
Granted: 1964-01-07
•
Expires: 1980-03-25
Abstract
No abstract record available.
Inventors
- 👤 George J Goepfert
- 👤 Edward C Johns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:19
CPC Classifications
B; B24; B24D; B24D18/00; B24D18/0009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A METHOD OF MAKING COLD-MOLDED, RESIN-BONDED, ABRASIVE WHEELS OF THE TYPE WHEREIN ALTERNATE LAYERS OF PRESSURE-SENSITIVE, PHENOLIC RESIN-COATED ABRASIVE GRAINS AND FIBROUS REINFORCEMENT ARE ASSEMBLED IN A MOLD, THE RESULTING LAMINATE IS MOLDED UNDER HIGH PRESSURE AT ATMOSPHERIC TEMPERATURE TO FORM A WHEEL AND THE MOLDED WHEEL IS CURED AT AN ELEVATED TEMPERATURE, THE IMPROVEMENT WHICH COMPRISES EXPOSING AT LEAST ONE OF SAID LAYERS OF RESIN-COATED ABRASIVE GRAINS DURING ASSEMBLY OF SAID LAMINATE TO A SOURCE OF RADIANT HEAT TO HEAT ONLY THE UPPER SURFACE THEREOF.
Claim 2
Dependent Claim
12 words
AN ABRASIVE WHEEL MADE IN ACCORDANCE WITH THE METHOD OF CLAIM 2.
References Cited (Backward Citations)
US2734813A
Cited
US2899288A
Cited
US2393267A
Cited
US2643945A
Cited
US2642370A
Cited
US2656654A
Cited
US2768483A
Cited
US2808688A
Cited
US2996368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |