US2874034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding tool formed of an inorganic bonding agent
Assignee: Individual
•
Filing: 1954-08-10
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Granted: 1959-02-17
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Expires: 1974-08-10
Abstract
No abstract record available.
Inventors
- 👤 Rieke George August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:17
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/34; B24D3/342; B24D3/344
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN ABRASIVE GRINDING WHEEL CONSISTING ESSENTIALLY OF 95-50 PARTS BY WEIGHT OF INORGANIC ABRASIVE MATERIAL IN FINELY DIVIDED FOR BONDED INTO A COMPOSITE MASS WITH A THERMOSETTING ORGANIC BINDER IN A CURED STAGE PRESENT IN AN AMOUNT WITHIN THE RANGE OF5-50 PARTS BY WEIGHT AND SELECTED FROM THE GROUP CONSISTING OF PHENOL FORMALDEHYDE, UREA FORMALDEHYDE, MELAMINE FORMALDEHYDE, SHELLAC AND RUBBER AND AN EXPANDED MICACIOUS MINERAL IN FINELY DIVIDED FORM DISTRIBUTED THEREIN AND PRESENT IN AN AMOUNT RANGING FORM 5-25 PARTS BY WEIGHT BASED UPON THE AMOUNT OF ORGANIC BONDING AGENT.
Claim 2
Dependent Claim
90 words
AN ABRASIVE GRINDING WHEEL CONSISTING ESSENTIALLY OF 95-50 PARTS BY WEIGHT OF INORGANIC ABRASIVE MATERIAL IN FINELY DIVIDED FOR BONDED INTO A COMPOSITE MASS WITH A THERMOSETTING ORGANIC BINDER IN A CURED STAGE PRESENT IN AN AMOUNT WITHIN THE RANGE OF5-50 PARTS BY WEIGHT AND SELECTED FROM THE GROUP CONSISTING OF PHENOL FORMALDEHYDE, UREA FORMALDEHYDE, MELAMINE FORMALDEHYDE, SHELLAC AND RUBBER AND AN EXPANDED MICACIOUS MINERAL IN FINELY DIVIDED FORM DISTRIBUTED THEREIN AND PRESENT IN AN AMOUNT RANGING FORM 5-25 PARTS BY WEIGHT BASED UPON THE AMOUNT OF ORGANIC BONDING AGENT.
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) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |