Patent US2530858A successfully refreshed from Google Patents.
US2530858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agitator
Assignee: Greif International Holding BV
•
Filing: 1947-09-30
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Granted: 1950-11-21
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Expires: 1967-09-30
Abstract
No abstract record available.
Inventors
- 👤 Henry L Cerniak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:30
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/24; B65D51/32; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/112; B01F27/1125; B01F27/11253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |