Patent US3672822A successfully refreshed from Google Patents.
US3672822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibiting environment for aluminum
Assignee: General Electric Co
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Filing: 1969-12-03
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Granted: 1972-06-27
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Expires: 1989-12-03
Abstract
Abstract ALUMINUM CAN BE PROTECTED AGAINST CORROSION BY PROVIDING A VAPOR PHASE INHIBITING ENVIRONMENT FOR THE ALUMINUM COMPRISING A HYDROLYZABLE VOLATILE ORGANIC PHOSPHATE.
Inventors
- 👤 Willem Vedder
- 👤 David A Vermilyea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:18
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |