US3401065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control of nitrite addition in acid phosphate coating solutions
Assignee: Henkel Corp
•
Filing: 1964-08-18
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Granted: 1968-09-10
•
Expires: 1984-08-18
Abstract
No abstract record available.
Inventors
- 👤 Steinbrecher Lester
- 👤 Dwight E Buczkowski
- 👤 James W Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:09
CPC Classifications
G; G05; G05D; G05D21/00; G05D21/02; C; C23; C23C; C23C22/00; C23C22/73; C23C22/77
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB606382A
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US2805191A
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US2898282A
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US2912367A
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US3178320A
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US3095121A
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US3179581A
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US3294593A
Cited
US3214301A
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US3312189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |