US2986482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal phosphating composition and process
Assignee: PPG Architectural Coatings Canada Inc
•
Filing: 1960-07-01
•
Granted: 1961-05-30
•
Expires: 1980-07-01
Abstract
No abstract record available.
Inventors
- 👤 Sharp John Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:26
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/02; C23C22/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A SUBSTANTIALLY ANHYDROUS COMPOSITION SUITABLE FOR CLEANING AND PHOSPHATING METAL ARTICLES, WHICH CONSISTS ESSENTIALLY OF A CHLORINATED HYDROCARBON DEGREASING SOLVENT CONTAINING FROM ABOUT 1% TO 10% BY WEIGHT OF AT LEAST ONE SORBITAN MONOESTER OF AN ALIPHATIC ACID HAVING FROM 12 TO 18 CARBON ATOMS PER MOLECULE, AND FROM ONE TO SIX MOLES OF PHOSPHORIC ACID PER MOLE OF SORBITAN MONOESTER.
Claim 2
Dependent Claim
61 words
A SUBSTANTIALLY ANHYDROUS COMPOSITION SUITABLE FOR CLEANING AND PHOSPHATING METAL ARTICLES, WHICH CONSISTS ESSENTIALLY OF A CHLORINATED HYDROCARBON DEGREASING SOLVENT CONTAINING FROM ABOUT 1% TO 10% BY WEIGHT OF AT LEAST ONE SORBITAN MONOESTER OF AN ALIPHATIC ACID HAVING FROM 12 TO 18 CARBON ATOMS PER MOLECULE, AND FROM ONE TO SIX MOLES OF PHOSPHORIC ACID PER MOLE OF SORBITAN MONOESTER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |