US2968444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refining discs
Assignee: E D JONES CORP
•
Filing: 1956-11-07
•
Granted: 1961-01-17
•
Expires: 1976-11-07
Abstract
No abstract record available.
Inventors
- 👤 Dwight E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:15
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US18848A
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US310940A
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US492239A
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US539704A
Cited
GB331567A
Cited
FR950168A
Cited
US2654295A
Cited
US2682810A
Cited
US2690098A
Cited
US2651976A
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US2778282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |