US3669699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inorganic coating composition
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1970-07-28
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Granted: 1972-06-13
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Expires: 1990-07-28
Abstract
Abstract AN INORGANIC COATING COMPOSITION IS PROVIDED WHICH COMPRISES (1) A WEAK ALKALINE AQUEOUS SOLUTION OF AN ALKALI METAL SILICATE AND (2) AT LEAST ONE CONDENSED PHOSPHATE PREPARED BY HEATING A MIXTURE OF (A) A PHOSPHATE HAVING IN AN AVERAGE COMPOSITION FORMULA: MO.XP2O5.YH2O WHEREIN M REPRESENTS A METAL SELECTED FROM THE GROUP CONSISTING OF AL, MG, CA, CU, FE, MN AND ZN, THE ATOMIC RATIO M/P IS 0.25-1.0, EACH OF X AND Y IS A REAL NUMBER AND (B) A CALCINATED DOUBLE OXIDE OF (A) A A METAL SELECTED FROM GROUP II OF THE PERIODIC TABLE OR (B) AT LEAST ONE METAL SELCETED FROM TRANSITION METALS AND METALS OF GROUP IV OF THE PERIODIC TABLE.
Inventors
- 👤 Kazuo Doi
- 👤 Jun Nakajima
- 👤 Hisamitsu Takahashi
- 👤 Hideo Tomokawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:18
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/36; C09C1/02; C09C1/04; C09C1/046; C09C1/22; C09C1/28; C09C1/34; C09C1/40; C09C1/405; C09D; C09D1/00; C09D1/02; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |