US2986347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material reducing apparatus
Assignee: Jeffrey Manufacturing Co
•
Filing: 1958-12-02
•
Granted: 1961-05-30
•
Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 Robert W Stevenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:21
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/28; B02C13/2804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US39855A
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US577278A
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US1851390A
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US908801A
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US1396108A
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US1718050A
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GB425271A
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US2141664A
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US2141663A
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US2360357A
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US2381775A
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US2665851A
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US2785865A
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US2869793A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |