US2540003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonferrous metal burnishing composition and burnishing process
Assignee: Wyandotte Chemicals Corp
•
Filing: 1947-04-19
•
Granted: 1951-01-30
•
Expires: 1967-04-19
Abstract
No abstract record available.
Inventors
- 👤 Lowell R Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:56
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/12; B24B31/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
THE METHOD REMOVING TARNISH AND POLISHING BRASS ARTICLES, WHICH COMPRISES BALL-BURNISHING SAID ARTICLES IN AN AQUEOUS SOLUTION CONTAINING 0.05%-0.1% BY WEIGHT OF A WETTING AGENT SELECTED FROM THE GROUP CONSISTING OF THE SODIUM SALT OF SULFONATED GLYCEROL-HIGHER FATTY ACID MONO-ESTER CORRESPONDING TO THE FORMULA:
Claim 2
Independent Claim
44 words
THE METHOD REMOVING TARNISH AND POLISHING BRASS ARTICLES, WHICH COMPRISES BALL-BURNISHING SAID ARTICLES IN AN AQUEOUS SOLUTION CONTAINING 0.05%-0.1% BY WEIGHT OF A WETTING AGENT SELECTED FROM THE GROUP CONSISTING OF THE SODIUM SALT OF SULFONATED GLYCEROL-HIGHER FATTY ACID MONO-ESTER CORRESPONDING TO THE FORMULA:
References Cited (Backward Citations)
US1063478A
Cited
US1968794A
Cited
US1840429A
Cited
US2049467A
Cited
US1945908A
Cited
US2089212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |