US3475228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorinated solvent compositions containing phosphoric acid for stabilization and for phosphatizing of metals
Assignee: EIDP Inc
•
Filing: 1967-03-31
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Granted: 1969-10-28
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Expires: 1987-03-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Parker
- 👤 John P Sherick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:54
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/02; C23C22/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE584827A
Cited
US3361598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |