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US2521384A
Expired / Lapsed
US
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Paint mixer
Assignee: Marine Metal Products Co
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Filing: 1949-09-15
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Granted: 1950-09-05
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Expires: 1969-09-15
Abstract
No abstract record available.
Inventors
- 👤 Marienthal Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:46
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/80; B01F27/88; B01F35/00; B01F35/30; B01F35/32; B01F35/323; B01F35/3231; B01F35/40; B01F35/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US567726A
Cited
US1842938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |