US2791403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supersonic lubricant homogenizer
Assignee: Individual
•
Filing: 1953-10-30
•
Granted: 1957-05-07
•
Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
- 👤 John L Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:36
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/10; B01F; B01F31/00; B01F31/80; B01F31/84; B01F31/841; Y; Y10; Y10S; Y10S516/00; Y10S516/924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |