Patent US3663355A successfully refreshed from Google Patents.
US3663355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-proof and no-smoke-producing plate for architectural use
Assignee: Individual
•
Filing: 1970-03-23
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Granted: 1972-05-16
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Expires: 1990-03-23
Abstract
Abstract A flame-proof and no-smoke-producing wooden plate for architectural use comprising a wooden base plate, a layer of a water-proof composition formed on said wooden plate, a layer of a water-soluble silicate selected from the group consisting of sodium silicate or potassium silicate formed on said layer of said water-proof composition, and an additional layer of a waterproof composition formed on said water-soluble silicate layer. Each of said water-proof compositions is formed by adding to a water-soluble silicate selected from the group consisting of sodium silicate and potassium silicate a dicalcium silicate material which combines with a water-soluble silicate to produce a self-setting mixture.
Inventors
- 👤 Keisuke Shimizu
- 👤 Kiichi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:28
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/941; E04B1/942; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
The flame-proof and no-smoke-producing wooden plate for architectural use of claim 1 further comprising a decorative surface layer formed by affixing a printed sheet on said additional layer of said water-proof composition which serves as an adhesive layer.
Claim 2
Dependent Claim
43 words
The flame-proof and no-smoke-producing wooden plate for architectural use of claim 1 wherein printing is effected directly on the uppermost layer of said water-proof composition so as to provide a decorative pattern of any design as desired on the surface of the plate.
References Cited (Backward Citations)
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |