US2886477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal cleaning and phosphating composition
Assignee: Individual
•
Filing: 1957-09-16
•
Granted: 1959-05-12
•
Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 Chester W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:36
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AN OPALESCENT TO CLEAR, STABLE LIQUID COMPOSITION FOR SIMULTANEOUSLY CLEANING AND PHOSHATING METAL SURFACE CONSISTING ESSENTIALLY OF ABOUT 50-80 PERCENT OF AN AQUEOUS ACIDIC PHOSPHATING SOLUTION; ABOUT 4-30 PERCENT OF A HYDROCARBON SOLVENT FOR GREASE AND OIL; AND ABOUT 10-30 TOTAL PERCENT OF AN EMULSIFIER AND AN ETHYLENE OXIDE CONDENSATION DETERGENT, WHEREIN SAID HYDROCARBON SOLVENT HAS AN INITIAL BOILING POINT OF ABOUT 200*-450* F. AND A FINAL BOILING POINT BELOW ABOUT 700* F.
Claim 2
Dependent Claim
73 words
AN OPALESCENT TO CLEAR, STABLE LIQUID COMPOSITION FOR SIMULTANEOUSLY CLEANING AND PHOSHATING METAL SURFACE CONSISTING ESSENTIALLY OF ABOUT 50-80 PERCENT OF AN AQUEOUS ACIDIC PHOSPHATING SOLUTION; ABOUT 4-30 PERCENT OF A HYDROCARBON SOLVENT FOR GREASE AND OIL; AND ABOUT 10-30 TOTAL PERCENT OF AN EMULSIFIER AND AN ETHYLENE OXIDE CONDENSATION DETERGENT, WHEREIN SAID HYDROCARBON SOLVENT HAS AN INITIAL BOILING POINT OF ABOUT 200*-450* F. AND A FINAL BOILING POINT BELOW ABOUT 700* F.
References Cited (Backward Citations)
CA473408A
Cited
US2396776A
Cited
US2479423A
Cited
US2744555A
Cited
GB717866A
Cited
FR1062140A
Cited
US2809906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |