US3885978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inorganic coating composition
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1973-09-12
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Granted: 1975-05-27
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Expires: 1993-09-12
Abstract
Abstract Inorganic coating composition containing (1) a spinel type double oxide, for example of zinc and titanium, (2) a binder, for example aluminum phosphate, and (3) a curing agent, for example calcium hydroxide.
Inventors
- 👤 Kazuo Doi
- 👤 Jun Nakajima
- 👤 Masahiko Shodai
- 👤 Junichi Uchimura
- 👤 Takeaki Wada
- 👤 Zenzaburo Shibata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:41
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/34; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN INORGANIC COATING COMPOSITION WHICH COMPRISES (1) A SPINEL TYPE DOUBLE OXIDE OF A (A) AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF ZN, MG, CA AND BA AND (B) AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF TI, FE, SN, CO, CR, AL AND MN, (2) A BINDER SELECTED FROM THE GROUP CONSISTING OF (A) CONDENSED PHOSPHORIC ACID METAL SALTS, SAID METAL BEING AL OR A MIXTURE OF AL AND ONE OR MORE OF MG, CA, CU, FE, MN AND ZN AND (B) PHOSPHATES OF THE FORMULA
Claim 2
Dependent Claim
92 words
AN INORGANIC COATING COMPOSITION WHICH COMPRISES (1) A SPINEL TYPE DOUBLE OXIDE OF A (A) AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF ZN, MG, CA AND BA AND (B) AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF TI, FE, SN, CO, CR, AL AND MN, (2) A BINDER SELECTED FROM THE GROUP CONSISTING OF (A) CONDENSED PHOSPHORIC ACID METAL SALTS, SAID METAL BEING AL OR A MIXTURE OF AL AND ONE OR MORE OF MG, CA, CU, FE, MN AND ZN AND (B) PHOSPHATES OF THE FORMULA
References Cited (Backward Citations)
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US2964415A
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US3167439A
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US3148996A
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US3179527A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |