Patent US2998390A successfully refreshed from Google Patents.
US2998390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recirculating toilet sump fluid
Assignee: Lockheed Martin Corp
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Filing: 1957-12-05
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Granted: 1961-08-29
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Expires: 1977-12-05
Abstract
No abstract record available.
Inventors
- 👤 William F Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:47
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A RECIRCULATING SUMP FLUID FOR A FLUSHABLE TOILET CAPABLE OF TREATING APPROXIMATELY 12 GALLONS OF SEWAGE WHEN SAID FLUID IS AERATED CONSISTING ESSENTIALLY OF FROM 20 TO 70 GRAMS OF A QUATERNARY AMMONIUM ANTI-BACTERIAL SALT FROM THE GROUP CONSISTING OF P-DIISOBUTYL PHENOXY ETHOXY ETHYL DIMETHYL BENZYL AMMONIUM CHLORIDE MONOHYDRATE, BENZALKONIUM CHLORIDE, AND ALKYL C9-C15 TOLYL METHYL TRIMETHYL AMMONIUM CHLORIDE, FROM 2 TO 10 GRAMS OF SAPONIN AND WATER TO FORM APPROXIMATELY 3 GALLONS OF TOTAL SOLUTION.
Claim 2
Dependent Claim
76 words
A RECIRCULATING SUMP FLUID FOR A FLUSHABLE TOILET CAPABLE OF TREATING APPROXIMATELY 12 GALLONS OF SEWAGE WHEN SAID FLUID IS AERATED CONSISTING ESSENTIALLY OF FROM 20 TO 70 GRAMS OF A QUATERNARY AMMONIUM ANTI-BACTERIAL SALT FROM THE GROUP CONSISTING OF P-DIISOBUTYL PHENOXY ETHOXY ETHYL DIMETHYL BENZYL AMMONIUM CHLORIDE MONOHYDRATE, BENZALKONIUM CHLORIDE, AND ALKYL C9-C15 TOLYL METHYL TRIMETHYL AMMONIUM CHLORIDE, FROM 2 TO 10 GRAMS OF SAPONIN AND WATER TO FORM APPROXIMATELY 3 GALLONS OF TOTAL SOLUTION.
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) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |