US3397876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-solid reaction apparatus
Assignee: Fall River Exploration and Mining Co
•
Filing: 1966-01-14
•
Granted: 1968-08-20
•
Expires: 1986-01-14
Abstract
No abstract record available.
Inventors
- 👤 Valle Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:17
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/02; C22B15/00; C22B15/0063; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1152693A
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US2053876A
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US2242979A
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US2314871A
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US3057702A
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GB767322A
Cited
BE563367A
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US2976126A
Cited
US3150934A
Cited
US3297410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |