Patent US1815573A successfully refreshed from Google Patents.
US3915902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning compositions
Assignee: SYSTEMS GENERAL Inc
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Filing: 1973-08-29
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Granted: 1975-10-28
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Expires: 1993-08-29
Abstract
Abstract Stable, clear, non-flammable, water and organic solvent based foamable cleaning compositions comprising water, hydrocarbon solvent, chlorinated solvent, surfactant, organic solubilizing agent and builder.
Inventors
- 👤 Selwyn J Ancel
- 👤 James O Gladish
- 👤 Floyd L Mickelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:56
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0094; C11D3/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A STABLE, CLEAR, NON-FLAMMABLE, WATER AND ORGANIC SOLVENT BASED FORMABLE CLEANING COMPOSITION, CONSISTING ESSENTIALLY OF, IN APPROXIMATELY THE STATED PERCENTAGES BY WEIGHT:
Claim 2
Dependent Claim
22 words
A STABLE, CLEAR, NON-FLAMMABLE, WATER AND ORGANIC SOLVENT BASED FORMABLE CLEANING COMPOSITION, CONSISTING ESSENTIALLY OF, IN APPROXIMATELY THE STATED PERCENTAGES BY WEIGHT:
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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |