US2464588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for dispersing agglomerated pigments in liquids
Assignee: PPG Industries Inc
•
Filing: 1945-08-03
•
Granted: 1949-03-15
•
Expires: 1965-08-03
Abstract
No abstract record available.
Inventors
- 👤 Percy E Knudsen
- 👤 John A Hanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:17
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/115; B01F27/1152; Y; Y10; Y10S; Y10S366/00; Y10S366/605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1242445A
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US1281351A
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US1560826A
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US1765386A
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US1692617A
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US1804966A
Cited
US2240213A
Cited
US2378786A
Cited
US2357640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |