US3277012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agent for unrusting iron and ironcontaining articles
Assignee: Spiess Dr GmbH
•
Filing: 1963-01-14
•
Granted: 1966-10-04
•
Expires: 1983-01-14
Abstract
No abstract record available.
Inventors
- 👤 Krockow Ernest-Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:50
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C23G1/08; C23G1/088; C23G1/14; C23G1/19; C23G1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A RUST REMOVING COMPOSITION CONSISTING OF 0.1100% OF AN ORGANIC THIOL COMPOUND HAVING AT LEAST OE -SH GROUP SELECTED FROM THE GROUP CONSISTING OF MERCAPTANS, THIO ALCOHOLS, THIO ACIDS, AND SALTS OF THIO ACIDS, AS ACTIVE RUST-REMOVING INGREDIENT, THE REMAINDER CONSISTING OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER AND ALCOHOLS.
Claim 2
Dependent Claim
53 words
A RUST REMOVING COMPOSITION CONSISTING OF 0.1100% OF AN ORGANIC THIOL COMPOUND HAVING AT LEAST OE -SH GROUP SELECTED FROM THE GROUP CONSISTING OF MERCAPTANS, THIO ALCOHOLS, THIO ACIDS, AND SALTS OF THIO ACIDS, AS ACTIVE RUST-REMOVING INGREDIENT, THE REMAINDER CONSISTING OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER AND ALCOHOLS.
References Cited (Backward Citations)
US2488832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |