Patent US2700512A successfully refreshed from Google Patents.
US2700512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical axis rotary beater mill for treatment of fibrous materials
Assignee: Individual
•
Filing: 1952-06-06
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Granted: 1955-01-25
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Expires: 1972-06-06
Abstract
No abstract record available.
Inventors
- 👤 John J Denovan
- 👤 Robert A Denovan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:51
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US248923A
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DE390584C
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US1513279A
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US1636033A
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US1669239A
Cited
US1798465A
Cited
FR874310A
Cited
US2359911A
Cited
US2448849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |