US2889283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making detergent composition
Assignee: Procter and Gamble Co
•
Filing: 1956-04-23
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Granted: 1959-06-02
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Expires: 1976-04-23
Abstract
No abstract record available.
Inventors
- 👤 Tecklenburg Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:22
CPC Classifications
B; B01; B01J; B01J2/00; C; C11; C11D; C11D17/00; C11D17/06; C11D3/00; C11D3/40; C11D9/00; C11D9/04; C11D9/44; C11D9/444
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A PROCESS OF CONTINUOUSLY MAKING A SPECKLED GRANULAR DETERGENT COMPOSITION WHICH COMPRISES THE STEPS OF (1) SUBJECTING DETERGENT GRANULES TO AN AIR LIFT TO FORM A CONTINUOUSLY FLOWING STREAM, (2) SEPARATING FINES FROM THE CONTINUOUSLY FLOWING STREAM, (3) CONTINUOUSLY SCREENING THE RESULTING GRANULES, (4) CONTINUOUSLY DIVERTING A FRACTION OF THE SCREENED GRANULES CONTROLLED AS TO QUANTITY, (5) SPRAY-TREATING THE DIVERTED FRACTION WITH A WATER SOLUTION OF COLORING MATERIAL, AND (6) INTRODUCING THE SO-TREATED GRANULES IN SAID AIR LIFT AND COMBINING SAME WITH FRESH UNTREATED GRANULES PASSING THROUGH SAID AIR LIFT AT A POINT SUFFICIENTLY AHEAD OF THE SEPARATION OF FINES WHEREBY SPRAY-TREATED GRANULES ARE DRIED AND MIXED THOROUGHLY WITH SAID FRESH UNTREATED GRANULES, THE QUANTITY OF THE SO-TREATED GRANULES DISCHARGED WITH THE UN DIVERTED FRACTION OF STEP (4) BEING APPROXIMATELY 2% TO 30% OF TIME TOTAL QUANTITY OF THE MIXTURE.
Claim 2
Dependent Claim
140 words
A PROCESS OF CONTINUOUSLY MAKING A SPECKLED GRANULAR DETERGENT COMPOSITION WHICH COMPRISES THE STEPS OF (1) SUBJECTING DETERGENT GRANULES TO AN AIR LIFT TO FORM A CONTINUOUSLY FLOWING STREAM, (2) SEPARATING FINES FROM THE CONTINUOUSLY FLOWING STREAM, (3) CONTINUOUSLY SCREENING THE RESULTING GRANULES, (4) CONTINUOUSLY DIVERTING A FRACTION OF THE SCREENED GRANULES CONTROLLED AS TO QUANTITY, (5) SPRAY-TREATING THE DIVERTED FRACTION WITH A WATER SOLUTION OF COLORING MATERIAL, AND (6) INTRODUCING THE SO-TREATED GRANULES IN SAID AIR LIFT AND COMBINING SAME WITH FRESH UNTREATED GRANULES PASSING THROUGH SAID AIR LIFT AT A POINT SUFFICIENTLY AHEAD OF THE SEPARATION OF FINES WHEREBY SPRAY-TREATED GRANULES ARE DRIED AND MIXED THOROUGHLY WITH SAID FRESH UNTREATED GRANULES, THE QUANTITY OF THE SO-TREATED GRANULES DISCHARGED WITH THE UN DIVERTED FRACTION OF STEP (4) BEING APPROXIMATELY 2% TO 30% OF TIME TOTAL QUANTITY OF THE MIXTURE.
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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) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |