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Patent US2903191A successfully refreshed from Google Patents.
US2903191A
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Disintegrating and dispersion apparatus and method
Assignee: Rietz Manufacturing Co
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Filing: 1955-01-21
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Granted: 1959-09-08
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Expires: 1975-01-21
Abstract
No abstract record available.
Inventors
- 👤 Carl A Rietz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:47
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/0084; B02C18/0092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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CH97630A
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US1839513A
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US2042880A
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US2140076A
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US2240213A
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US2333246A
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US2435884A
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US2543599A
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FR1030118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |