US3491952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granulizer with power feeder
Assignee: Blaw Knox Co
•
Filing: 1966-09-15
•
Granted: 1970-01-27
•
Expires: 1986-09-15
Abstract
No abstract record available.
Inventors
- 👤 Otto Charles Krolopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:25
CPC Classifications
A; A47; A47J; A47J42/00; A47J42/38; A47J42/50; B; B02; B02C; B02C4/00; B02C4/28; B02C4/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US816390A
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US909429A
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US1365228A
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US1359357A
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US1450723A
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US1530615A
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US1709018A
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US2144533A
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US2282708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |