Patent US2637138A successfully refreshed from Google Patents.
Patent US3757492A successfully refreshed from Google Patents.
Patent US3223646A successfully refreshed from Google Patents.
US3223646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry free-flowing detergent composition and method of preparation
Assignee: Diamond Shamrock Corp
•
Filing: 1961-08-25
•
Granted: 1965-12-14
•
Expires: 1981-08-25
Abstract
No abstract record available.
Inventors
- 👤 Mckenna James Cline
- 👤 Albrecht Kurt
- 👤 John H Mccracken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:17
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/30; C01B25/301; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D3/062; C11D3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A DRY, FREE-FLOWING DETERGENT COMPOSITION, CONSISTING ESSENTIALLY OF A MIXTURE OF AT LEAST ONE PHOSPHATE OF THE FORMULA: MXHYPO4$AH2O
Claim 2
Dependent Claim
19 words
A DRY, FREE-FLOWING DETERGENT COMPOSITION, CONSISTING ESSENTIALLY OF A MIXTURE OF AT LEAST ONE PHOSPHATE OF THE FORMULA: MXHYPO4$AH2O
References Cited (Backward Citations)
US2351559A
Cited
US2515880A
Cited
US1642244A
Cited
US1648656A
Cited
US1921505A
Cited
US2017828A
Cited
US1961127A
Cited
US2502881A
Cited
US2811419A
Cited
US3086844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |