Patent US3183633A successfully refreshed from Google Patents.
US3183633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane gear finishing tool
Assignee: Michigan Tool Co
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Filing: 1963-10-24
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Granted: 1965-05-18
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Expires: 1983-10-24
Abstract
No abstract record available.
Inventors
- 👤 John W Decker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:26
CPC Classifications
B; B23; B23F; B23F21/00; B23F21/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
AN ABRASIVE GEAR-SHAPED FINISHING TOOL COMPRISING A CYLINDRICAL BODY HAVING A PLURALITY OF TOOTH ELEMENTS THEREAROUND AT LEAST THE SURFACES OF WHICH ARE COMPRISED OF AN ABRASIVE MATRIX COMPRISING A POLYURETHANE RESIN BONDING AGENT AND A PLURALITY OF ABRASIVE GRAINS TENACIOUSLY BONDED THEREIN, SAID BONDING AGENT COMPRISING THE REACTION PRODUCT BETWEEN TOLVLENE DIISOCYANATE AND A POLYHYDROXY ETHER RESIN HAVING A MOLECULAR WEIGHT RANGEING ABOUT 1000 UP TO ABOUT 1500, SAID BONDING AGENT PRESENT IN AN AMOUNT RANGING FROM ABOUR 20% TO ABOUT 80% BY WEIGHT OF SAID ABRASIVE MATRIX.
Claim 2
Dependent Claim
89 words
AN ABRASIVE GEAR-SHAPED FINISHING TOOL COMPRISING A CYLINDRICAL BODY HAVING A PLURALITY OF TOOTH ELEMENTS THEREAROUND AT LEAST THE SURFACES OF WHICH ARE COMPRISED OF AN ABRASIVE MATRIX COMPRISING A POLYURETHANE RESIN BONDING AGENT AND A PLURALITY OF ABRASIVE GRAINS TENACIOUSLY BONDED THEREIN, SAID BONDING AGENT COMPRISING THE REACTION PRODUCT BETWEEN TOLVLENE DIISOCYANATE AND A POLYHYDROXY ETHER RESIN HAVING A MOLECULAR WEIGHT RANGEING ABOUT 1000 UP TO ABOUT 1500, SAID BONDING AGENT PRESENT IN AN AMOUNT RANGING FROM ABOUR 20% TO ABOUT 80% BY WEIGHT OF SAID ABRASIVE MATRIX.
References Cited (Backward Citations)
US2913858A
Cited
US3074211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |