US2423714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode clamp
Assignee: Mathieson Alkali Works Inc
•
Filing: 1943-06-29
•
Granted: 1947-07-08
•
Expires: 1963-06-29
Abstract
No abstract record available.
Inventors
- 👤 Leonard Laurence Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:17
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/02; C25C7/025; C25B; C25B9/00; C25B9/60; C25B9/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB190007272A
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US733602A
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US1770839A
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US1830947A
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US1936469A
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US2013868A
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US1856330A
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US1964736A
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US2020285A
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US2300893A
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US2331255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |