US3002909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of inhibiting corrosion
Assignee: Keystone Shipping Co
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Filing: 1959-07-10
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Granted: 1961-10-03
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Expires: 1979-07-10
Abstract
No abstract record available.
Inventors
- 👤 Peter C Heidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:05
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE METHOD OF INHIBITING FERROUS METAL CORROSION IN WATER STORAGE SYSTEMS CONTAINING FERROUS METAL PARTS WHICH COMPRISES ADDING TO THE BODY OF WATER STORED IN SAID SYSTEMS AN INHIBITIVE PROPORTION OF FINELY DIVIDED MAGNESIUM METAL HAVING AN AVERAGE PARTICLE SIZE SUBSTANTIALLY SUCH THAT IT PASSES A NO. 20 MESH SCREEN, SAID METAL REMAINING DIPERSED IN SAID BODY OF WATER.
Claim 2
Independent Claim
59 words
THE METHOD OF INHIBITING FERROUS METAL CORROSION IN WATER STORAGE SYSTEMS CONTAINING FERROUS METAL PARTS WHICH COMPRISES ADDING TO THE BODY OF WATER STORED IN SAID SYSTEMS AN INHIBITIVE PROPORTION OF FINELY DIVIDED MAGNESIUM METAL HAVING AN AVERAGE PARTICLE SIZE SUBSTANTIALLY SUCH THAT IT PASSES A NO. 20 MESH SCREEN, SAID METAL REMAINING DIPERSED IN SAID BODY OF WATER.
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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |