US2805198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathodic protection system and anode therefor
Assignee: Dow Chemical Co
•
Filing: 1956-02-29
•
Granted: 1957-09-03
•
Expires: 1976-02-29
Abstract
No abstract record available.
Inventors
- 👤 Harold A Robinson
- 👤 John J Newport
- 👤 Osborn Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:27
CPC Classifications
C; C22; C22C; C22C23/00; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/12; C23F13/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A CATHODIC PROTECTION ANODE FORMED OF GALVANICALLY ACTIVE METAL HAVING THE FOLLOWING COMPOSITION IN PERCENT BY WEIGHT:
Claim 2
Dependent Claim
17 words
A CATHODIC PROTECTION ANODE FORMED OF GALVANICALLY ACTIVE METAL HAVING THE FOLLOWING COMPOSITION IN PERCENT BY WEIGHT:
References Cited (Backward Citations)
US1960700A
Cited
US2431723A
Cited
US2478479A
Cited
US2698230A
Cited
US2645612A
Cited
US2742355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |