US3018972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Materials reducing apparatus
Assignee: Jeffrey Manufacturing Co
•
Filing: 1960-06-15
•
Granted: 1962-01-30
•
Expires: 1980-06-15
Abstract
No abstract record available.
Inventors
- 👤 Walter C Steinmetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:32
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1174656A
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US2026790A
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US2103759A
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US2226330A
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US2440051A
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US2463843A
Cited
US2453006A
Cited
US2583319A
Cited
US2768559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |