Patent US3479260A successfully refreshed from Google Patents.
US3479260A
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Treatment for ferrous surfaces
Assignee: Bethlehem Steel Corp
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Filing: 1966-03-07
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Granted: 1969-11-18
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Expires: 1986-03-07
Abstract
No abstract record available.
Inventors
- 👤 Stewart E Rauch Jr
- 👤 Carlton E Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:18
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/38; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/1266; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12854
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2424718A
Cited
US2769774A
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US2812296A
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US2906677A
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US2920019A
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US2998361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |