US3404046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromating of zinc and aluminum and composition therefor
Assignee: Henkel Corp
•
Filing: 1964-09-25
•
Granted: 1968-10-01
•
Expires: 1984-09-25
Abstract
No abstract record available.
Inventors
- 👤 William S Russell
- 👤 Farina Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:45
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/34; C23C22/37; C23C22/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1946152A
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US2276353A
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US2483510A
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US2493934A
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US2858245A
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GB846363A
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US3018211A
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US3130086A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |