Patent US5292332A successfully refreshed from Google Patents.
US2464008A
Expired / Lapsed
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Continuous replenishment of electrodes in electric salt bath structures
Assignee: Commerce Pattern Foundry & Mac
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Filing: 1945-10-10
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Granted: 1949-03-08
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Expires: 1965-10-10
Abstract
No abstract record available.
Inventors
- 👤 Richard C Upton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:32
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/34; C21D1/44; C21D1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1373615A
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US971782A
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US1069255A
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US1875787A
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US2104530A
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US2248628A
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US2355761A
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US2349678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |