Patent US2644771A successfully refreshed from Google Patents.
US2644771A
Expired / Lapsed
US
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Process of coating structural surfaces
Assignee: Individual
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Filing: 1949-05-10
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Granted: 1953-07-07
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Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 James L Kempthorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:04
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/4505; C04B41/52; C04B41/60; C04B41/61; C04B41/70; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE METHOD OF FORMING A HARD, CONTINUOUS MOISTUREPROOF FIBROUS ASBESTOS INSULATION COATING ON A STRUCTURAL SURFACE TO INSULATE SAID SURFACE, CONSISTING OF ALTERNATELY SPRAYING CATIONIC AND ANIONIC DISPERSIONS THEREON UNTIL A COATING OF DESIRED THICKNESS IS BUILT UP ON SAID SURFACE, SAID CATIONIC DISPERSIONS COMPRISING ESSENTIALLY A SYNTHETIC RESINOUS BINDER CONTAINING 1-10% OF A STABILIZING CATIONIC, SURFACE ACTIVE AMIDE, AND A CARRIER LIQUID THEREFOR, TO IMPOSE A CATIONIC CHARGE ON SAID SURFACE, AND SAID ANIONIC DISPERSION COMPRISING ESSENTIALLY A MIXTURE OF CEMENT, LIME ALUMINUM STEARATE AND AN INERT MATERIAL DISPERSED IN WATER PLUS A STABILIZING ANIONIC WETTING AGENT, AND INTRODUCING A COMMINUTED FIBROUS INSULATION MATERIAL INTO THE ANIONIC DISPERSION DURING SPRAYING THEREOF ONTO THE SURFACE BEING COATED.
Claim 2
Independent Claim
117 words
THE METHOD OF FORMING A HARD, CONTINUOUS MOISTUREPROOF FIBROUS ASBESTOS INSULATION COATING ON A STRUCTURAL SURFACE TO INSULATE SAID SURFACE, CONSISTING OF ALTERNATELY SPRAYING CATIONIC AND ANIONIC DISPERSIONS THEREON UNTIL A COATING OF DESIRED THICKNESS IS BUILT UP ON SAID SURFACE, SAID CATIONIC DISPERSIONS COMPRISING ESSENTIALLY A SYNTHETIC RESINOUS BINDER CONTAINING 1-10% OF A STABILIZING CATIONIC, SURFACE ACTIVE AMIDE, AND A CARRIER LIQUID THEREFOR, TO IMPOSE A CATIONIC CHARGE ON SAID SURFACE, AND SAID ANIONIC DISPERSION COMPRISING ESSENTIALLY A MIXTURE OF CEMENT, LIME ALUMINUM STEARATE AND AN INERT MATERIAL DISPERSED IN WATER PLUS A STABILIZING ANIONIC WETTING AGENT, AND INTRODUCING A COMMINUTED FIBROUS INSULATION MATERIAL INTO THE ANIONIC DISPERSION DURING SPRAYING THEREOF ONTO THE SURFACE BEING COATED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |