US3745040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous surface covering and process for producing same
Assignee: Congoleum Corp
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Filing: 1971-01-26
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Granted: 1973-07-10
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Expires: 1991-01-26
Abstract
Abstract A PROCESS FOR PRODUCING A RESINOUS SURFACE COVERING INCLUDING IMPREGNATING A FELTED CELLULOSIC BACKING LAYER WITH 40% TO ABOUT 85% BY WEIGHT OF THE DRY FELT WITH A RESINOUS STRENGTHENING IMPREGNANT, COATING THE BACKING LAYER WITH A FOAMABLE RESIN INCLUDING A STABILIZER SUCH AS ORGANOTIN COMPOUNDS AND MIXTURES THEREOF, COATING THE FOAMABLE RESIN WITH A NON-FOAMABLE RESIN HAVING AN ORGANOTIN STABILIZER THEREIN, AND HEATING THE LAYERED ARTICLE TO FOAM THE FOAMABLE RESIN AND FUSE THE NON-FOAMABLE RESIN TO THEREBY PRODUCE A SURFACE COVERING HAVING A HIGH RESISTANCE TO DELAMINATION AND DISCOLORATION AT HIGH TEMPERATURES, AND THE PRODUCTS SO PRODUCED.
Inventors
- 👤 R Eitzel
- 👤 J Fowler
- 👤 J Morton
- 👤 J Schlaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:54
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/065; D; D06; D06N; D06N3/00; D06N3/04; D06N3/06; B32B27/18; B32B5/00; B32B5/22; B32B5/24; B32B5/245; D06N7/00; D06N7/0005; D06N7/0007; D06N7/0013; B32B2262/00; B32B2262/06; B32B2262/062; B32B2451/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T442/00; Y10T442/50; Y10T442/51; Y10T442/54
Claims Analysis
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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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |