US2472796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode rod for plating tanks
Assignee: Glenn L Martin Co
•
Filing: 1944-09-06
•
Granted: 1949-06-14
•
Expires: 1964-09-06
Abstract
No abstract record available.
Inventors
- 👤 William G Evans
- 👤 William C Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:54
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US361154A
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US569722A
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US639811A
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US1105981A
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US1148272A
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US2070343A
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US2175421A
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US2312452A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |