Patent US2935729A successfully refreshed from Google Patents.
US2987484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed die molding a detergent bar
Assignee: Procter and Gamble Co
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Filing: 1959-05-29
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Granted: 1961-06-06
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Expires: 1979-05-29
Abstract
No abstract record available.
Inventors
- 👤 Olle I Lundberg
- 👤 Blinka Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:18
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0047; C11D17/006; C11D1/00; C11D1/02; C11D1/12; C11D1/126; C11D17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
227 words
IN THE PROCESS OF CLOSED DIE MOLDING A DETERGENT BAR, THE STEPS OF (1) FORMING, FOR INJECTION, A FLUID MELT COMPRISING A MIXTURE OF FROM ABOUT 35% TO ABOUT 70% NORMALLY-SOLID, WATER-SOLUBLE, ANIONIC, NON-SOAP, SYNTHETIC DETERGENT AND FROM ABOUT 22% TO ABOUT 50% NORMALLYSOLID FATTY VEHICLE HAVING A MELTING POINT BETWEEN ABOUT 120*F. AND 220*F. SELECTED FROM THE GROUP CONSISTING OF SATURATED HIGHER MOLECULAR WEIGHT POINT BETWEEN ABOUT CHOLS AND MONO- AND DI-ESTERS OF SAID FATTY ACIDS AND A POLYHDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL, ETHYLENE GLYCOL AND DIETHYLENE GLYCOL, BY HEATING SAID MIXTURE TO A TEMPERATURE IN THE RANGE OF FROM ABOUT 160*F. TO ABOUT 300*F. AND WITH AGITATION SUBSTANTIALLY UNIFORMLY DISPERSING SAID DETERGENT IN SAID VEHICLE, THE TEMPERATURE AND PROPORTIONS OF SAID DETERGENT AND VEHICLE BEING SUCH THAT THE RESULTING MOLTEN DISPERSION HAS A VISCOSITY IN THE RANGE OF FROM ABOUT 2000 TO ABOUT 50,000 CENTIPOISES AT THE CONDITIONS OF INJECTION AND SUCH THAT SAID DISPERSION WILL COOL THROUGH THE NIGRE PLUS CRYSTALS PHASE, (2) CONTINUOUSLY AGITATING SAID DISPERSION PRIOR TO INJECTION, (3) INJECTING SAID DISPERSION INTO A SUBSTANTIALLY CLOSED BAR MOLD, FILLING SAID MOLD, SAID MOLD BEING PRECOOLED TO A TEMPERATURE IN THE RANGE OF ABOUT -30*F. TO ABOUT +40*F. AND SUFFICIENT TO FORM RAPIDLY AT LEAST A SOLID, SHAPE-SUSTAINING SHELL FOR SAID BAR, (4) EJECTING SAID BAR FROM SAID MOLD.
Claim 2
Dependent Claim
227 words
IN THE PROCESS OF CLOSED DIE MOLDING A DETERGENT BAR, THE STEPS OF (1) FORMING, FOR INJECTION, A FLUID MELT COMPRISING A MIXTURE OF FROM ABOUT 35% TO ABOUT 70% NORMALLY-SOLID, WATER-SOLUBLE, ANIONIC, NON-SOAP, SYNTHETIC DETERGENT AND FROM ABOUT 22% TO ABOUT 50% NORMALLYSOLID FATTY VEHICLE HAVING A MELTING POINT BETWEEN ABOUT 120*F. AND 220*F. SELECTED FROM THE GROUP CONSISTING OF SATURATED HIGHER MOLECULAR WEIGHT POINT BETWEEN ABOUT CHOLS AND MONO- AND DI-ESTERS OF SAID FATTY ACIDS AND A POLYHDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL, ETHYLENE GLYCOL AND DIETHYLENE GLYCOL, BY HEATING SAID MIXTURE TO A TEMPERATURE IN THE RANGE OF FROM ABOUT 160*F. TO ABOUT 300*F. AND WITH AGITATION SUBSTANTIALLY UNIFORMLY DISPERSING SAID DETERGENT IN SAID VEHICLE, THE TEMPERATURE AND PROPORTIONS OF SAID DETERGENT AND VEHICLE BEING SUCH THAT THE RESULTING MOLTEN DISPERSION HAS A VISCOSITY IN THE RANGE OF FROM ABOUT 2000 TO ABOUT 50,000 CENTIPOISES AT THE CONDITIONS OF INJECTION AND SUCH THAT SAID DISPERSION WILL COOL THROUGH THE NIGRE PLUS CRYSTALS PHASE, (2) CONTINUOUSLY AGITATING SAID DISPERSION PRIOR TO INJECTION, (3) INJECTING SAID DISPERSION INTO A SUBSTANTIALLY CLOSED BAR MOLD, FILLING SAID MOLD, SAID MOLD BEING PRECOOLED TO A TEMPERATURE IN THE RANGE OF ABOUT -30*F. TO ABOUT +40*F. AND SUFFICIENT TO FORM RAPIDLY AT LEAST A SOLID, SHAPE-SUSTAINING SHELL FOR SAID BAR, (4) EJECTING SAID BAR FROM SAID MOLD.
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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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |