US2900434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitors
Assignee: Union Carbide Corp
•
Filing: 1956-01-03
•
Granted: 1959-08-18
•
Expires: 1976-01-03
Abstract
No abstract record available.
Inventors
- 👤 Herman M Zimmerman
- 👤 Robert A Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:23
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/62; H01M4/628; H01M6/00; H01M6/04; H01M6/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
IN COMBINATION IN A PRIMARY CELL HAVING A CONSUMABLE ANODE, AN INSOLUBLE CATHODE, AN ELECTROLYTE-WET DEPOLARIZING MIX, AT LEAST ONE CORROSIN INHIBITOR SELECTED FROM THE GROUP CONSISTING OF MERCURY AND MERCURY SALTS TOGETHER WITH INHIBITING MEANS CONSISTING OF AN ORGANIC CORROSION INHIBITOR IN CONTACT WITH SAID CONSUMABLE ANODE, SAID ORGANIC INHIBITOR BEING DEFINED BY THE FORMULA
Claim 2
Dependent Claim
56 words
IN COMBINATION IN A PRIMARY CELL HAVING A CONSUMABLE ANODE, AN INSOLUBLE CATHODE, AN ELECTROLYTE-WET DEPOLARIZING MIX, AT LEAST ONE CORROSIN INHIBITOR SELECTED FROM THE GROUP CONSISTING OF MERCURY AND MERCURY SALTS TOGETHER WITH INHIBITING MEANS CONSISTING OF AN ORGANIC CORROSION INHIBITOR IN CONTACT WITH SAID CONSUMABLE ANODE, SAID ORGANIC INHIBITOR BEING DEFINED BY THE FORMULA
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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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |