US3728267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peeling type pickling compositions
Assignee: Mitsubishi Heavy Industries Ltd
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Filing: 1970-12-30
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Granted: 1973-04-17
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Expires: 1990-12-30
Abstract
Abstract A PEELING TYPE COMPOSITION FOR USE IN THE PICKLING TREATMENT, WHICH COMPRISES A FILM-FORMING COMPOSITION CONSISTING ESSENTIALLY OF SODIUM ALGINATE OR SODIUM ALGINATE ND GELATIN, WITH AT LEAST ONE OF STARCH, BENTONITE, TALC, POWDERED SILICA AND POWDERED ACTIVE TERRA ALBA ADDED THERETO, A LIQUID ACID OR SOLID ACID, A PENETRANT, AND A SOLUTION PROMOTINGG AGENT.
Inventors
- 👤 N Hirota
- 👤 T Matsushita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:43
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C23G1/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |