US3776852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pickling solutions
Assignee: Henkel AG and Co KGaA
•
Filing: 1972-01-26
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Granted: 1973-12-04
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Expires: 1992-01-26
Abstract
Abstract THE PRESENT INVENTION PROVIDES AN ACID PICKLING SOLUTION CONTAINING A WETTING AGENT, THE SOLUTION ALSO CONTAINING AN ANTI-FOAMING AGENT CONDISTING ESSENTIALLY OF A MIXTURE OF OCTADECANEDIOL-1,12 AND A PARAFFIN OIL.
Inventors
- 👤 H Fluchter
- 👤 C Rossmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:32
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |