US3741900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning composition
Assignee: Drackett Co
•
Filing: 1970-07-15
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Granted: 1973-06-26
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Expires: 1990-07-15
Abstract
Abstract A DRAIN CLEANING COMPOSITION AND THE METHOD FOR PREPARATION, CONTAINING ANHYDROUS MAGNESIUM CHLORIDE IN COMBINATION WITH OTHER INORGANIC SALTS SUCH AS BUT LIMITED TO CALCIUM CHLORIDE, SODIUM CHLORIDE AND POTASSIUM CHLORIDE. THE METHOD INVOLVES FUSING THE INGREDIENTS, GRANULATING AND PELLETIZING COMPACTING.
Inventors
- 👤 J Murtaugh
- 👤 R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:51
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |