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Patent US3344078A successfully refreshed from Google Patents.
US3344078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain cleaning compositions
Assignee: Honeywell International Inc
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Filing: 1965-01-28
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Granted: 1967-09-26
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Expires: 1985-01-28
Abstract
No abstract record available.
Inventors
- 👤 Russell A Graham
- 👤 William V Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:23
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/06; C11D7/10; C11D7/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A PROCESS FOR PREPARING COMPOSITIONS ADAPTED FOR USE AS A DRAIN CLEANER COMPRISING COMPACTED PARTICLES COMPOSED OF ABOUT 45% TO ABOUT 70% ALKALI METAL HYDROXIDE, ABOUT 20% TO ABOUT 40% BY WEIGHT ALKALI METAL NITRATE, ALUMINUM, AND 0 TO ABOUT 20% BY WEIGHT SODIUM CHLORIDE COMPRISING THE FOLLOWING STEPS: (A) MIXING THE ALKALI METAL HYDROXIDE, THE ALKALI METAL NITRATE, THE ALUMINUM, AND THE SODIUM CHLORIDE IN THE ABSENCE OF EXTERNAL HEATING SAID MATERIALS BEING IN SUBSTANTIALLY DRY PARTICULATE FORM, UNTIL A SUBSTANTIALLY HOMOGENEOUS MIXTURE IS FORMED; (B) COMPACTING THE HOMOGENEOUS MIXTURE UNDER PRESSURE TO FORM A SHEET; AND (C) GRANULATING THE SHEET TO FORM COMPACTED PARTICLES.
Claim 2
Dependent Claim
106 words
A PROCESS FOR PREPARING COMPOSITIONS ADAPTED FOR USE AS A DRAIN CLEANER COMPRISING COMPACTED PARTICLES COMPOSED OF ABOUT 45% TO ABOUT 70% ALKALI METAL HYDROXIDE, ABOUT 20% TO ABOUT 40% BY WEIGHT ALKALI METAL NITRATE, ALUMINUM, AND 0 TO ABOUT 20% BY WEIGHT SODIUM CHLORIDE COMPRISING THE FOLLOWING STEPS: (A) MIXING THE ALKALI METAL HYDROXIDE, THE ALKALI METAL NITRATE, THE ALUMINUM, AND THE SODIUM CHLORIDE IN THE ABSENCE OF EXTERNAL HEATING SAID MATERIALS BEING IN SUBSTANTIALLY DRY PARTICULATE FORM, UNTIL A SUBSTANTIALLY HOMOGENEOUS MIXTURE IS FORMED; (B) COMPACTING THE HOMOGENEOUS MIXTURE UNDER PRESSURE TO FORM A SHEET; AND (C) GRANULATING THE SHEET TO FORM COMPACTED PARTICLES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |