US2435973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for providing cathodic protection of metallic structures
Assignee: RUSTA RESTOR Corp
•
Filing: 1941-08-19
•
Granted: 1948-02-17
•
Expires: 1961-08-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Mactaggart
- 👤 George J Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:36
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1437507A
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US1436686A
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FR645856A
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US1877389A
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FR716453A
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US1964704A
Cited
US1962696A
Cited
US2053214A
Cited
US2176514A
Cited
US2219738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-16 | 1951-08-18 | 1952-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-16 | 1955-08-18 | 1956-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-16 | 1959-08-18 | 1960-02-17 | $7700.00 | Window Closed / Lapsed |