Patent US3751237A successfully refreshed from Google Patents.
US3751237A
Expired / Lapsed
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Abrasive composition of tetragonal germanium dioxide
Assignee: Motors Liquidation Co
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Filing: 1971-06-17
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Granted: 1973-08-07
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Expires: 1991-06-17
Abstract
Abstract The abrasive qualities of tetragonal germanium dioxide are described, along with compositions and articles made with a tetragonal germanium dioxide abrasive. Techniques for using tetragonal germanium dioxide as an abrasive are also described.
Inventors
- 👤 W Albers
- 👤 D Swets
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:15
CPC Classifications
B; B24; B24B; B24B1/00; B24D; B24D11/00; B24D18/00; C; C09; C09K; C09K3/00; C09K3/14; C09K3/1409
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
An abrasive article comprising a support and granules of tetragonal germanium dioxide bonded together and secured to said support.
Claim 2
Dependent Claim
15 words
The abrasive article as defined in claim 2 wherein the support is an open mesh.
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |