US2755170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitor
Assignee: Servel Inc
•
Filing: 1953-05-29
•
Granted: 1956-07-17
•
Expires: 1973-05-29
Abstract
No abstract record available.
Inventors
- 👤 Edward M Stubblefield
- 👤 Walter V Cropper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:55
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/18; C23F11/185; Y; Y10; Y10S; Y10S62/00; Y10S62/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN APPARATUS HAVING IRON PARTS AND CONTAINING A WATER SOLUTION OF HALIDE SALT SELECTED FROM A GROUP CONSISTING OF LITHIUM CHLORIDE AND LITHIUM BROMIDE, THE METHOD OF INHIBITING CORROSION AND THE FORMATION OF HYDROGEN IN THE APPARATUS WHICH COMPRISES ADDING AT LEAST 150 MILLIGRAMS OF LITHIUM MOLYBDATE TO THE SOLUTION FOR EACH SQUARE FOOT OF IRON SURFACE.
Claim 2
Dependent Claim
57 words
IN APPARATUS HAVING IRON PARTS AND CONTAINING A WATER SOLUTION OF HALIDE SALT SELECTED FROM A GROUP CONSISTING OF LITHIUM CHLORIDE AND LITHIUM BROMIDE, THE METHOD OF INHIBITING CORROSION AND THE FORMATION OF HYDROGEN IN THE APPARATUS WHICH COMPRISES ADDING AT LEAST 150 MILLIGRAMS OF LITHIUM MOLYBDATE TO THE SOLUTION FOR EACH SQUARE FOOT OF IRON SURFACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |