US2515880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of granular detergent
Assignee: —
•
Filing: —
•
Granted: 1950-07-18
•
Expires: 1967-07-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:19
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/08; C11D11/00; C11D11/0082; C11D11/02; C11D17/00; C11D17/0047; C11D17/0065; C11D17/0073; C11D17/06; C11D3/046; C11D3/06; C11D3/10; C11D7/00; C11D7/02; C11D7/04; C11D7/10; C11D7/12; C11D7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS FOR GRANULATING DRY POWDERED DETERGENT MIXTURES OF SUCH PARTICLE SIZE THAT A MAJOR PORTION PASSES THROUGH 65-MESH (TYLER) AND WHICH CONSIST OF SODA ASH AND AT LEAST ONE MATERIAL SELECTED FROM THE CLASS CONSISTING OF SODIUM SILICATE, SODIUM BICARBONATE AND SODIUM PHOSPHATES WHICH COMPRISES MECHANICALLY AGITATING THE DRY POWDERED MASS IN THE PRESENCE OF WATER WHICH IS SLOWLY ADDED IN AN AMOUNT EXCEEDING ABOUT 10 PER CENT BY WEIGHT OF THE MASS BUT BETWEEN ABOUT 70 TO 95 PER CENT OF THE WATER REQUIRED TO CONVERT THE DRY POWDERED MASS TO A PASTE WHEREIN THERE IS JUST SUFFICIENT WATER TO FORM THE CONTINUOUS PHASE AND CONVERT THE FREEFLOWING MASS TO A UNITARY MASS, AND SCREENING THE GRANULATED MASS TO RECOVER THE FRACTION WITHIN THE SIZE RANGE OF 20 TO 65 MESH (TYLER).
Claim 2
Dependent Claim
134 words
A PROCESS FOR GRANULATING DRY POWDERED DETERGENT MIXTURES OF SUCH PARTICLE SIZE THAT A MAJOR PORTION PASSES THROUGH 65-MESH (TYLER) AND WHICH CONSIST OF SODA ASH AND AT LEAST ONE MATERIAL SELECTED FROM THE CLASS CONSISTING OF SODIUM SILICATE, SODIUM BICARBONATE AND SODIUM PHOSPHATES WHICH COMPRISES MECHANICALLY AGITATING THE DRY POWDERED MASS IN THE PRESENCE OF WATER WHICH IS SLOWLY ADDED IN AN AMOUNT EXCEEDING ABOUT 10 PER CENT BY WEIGHT OF THE MASS BUT BETWEEN ABOUT 70 TO 95 PER CENT OF THE WATER REQUIRED TO CONVERT THE DRY POWDERED MASS TO A PASTE WHEREIN THERE IS JUST SUFFICIENT WATER TO FORM THE CONTINUOUS PHASE AND CONVERT THE FREEFLOWING MASS TO A UNITARY MASS, AND SCREENING THE GRANULATED MASS TO RECOVER THE FRACTION WITHIN THE SIZE RANGE OF 20 TO 65 MESH (TYLER).
References Cited (Backward Citations)
US2244158A
Cited
US2414969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |