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US3512722A
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Method of producing a finely divided substance and apparatus therefor
Assignee: Georgia Marble Co
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Filing: 1967-10-03
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Granted: 1970-05-19
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Expires: 1987-10-03
Abstract
No abstract record available.
Inventors
- 👤 Robert F Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:12
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/02; C09C1/021; B; B02; B02C; B02C23/00; B02C23/08; B02C23/10; B02C23/12; B02C23/18; B02C23/20; B02C23/22; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/61
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1954211A
Cited
US2595117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |