Patent US3790332A successfully refreshed from Google Patents.
US3790332A
Expired / Lapsed
US
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Liquid candles
Assignee: Prices Patent Candles Ltd
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Filing: 1972-01-17
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Granted: 1974-02-05
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Expires: 1992-01-17
Abstract
Abstract A liquid candle capable of burning with a coloured flame is formed by floating a wick holder comprising a float and a wick on a body of combustible liquid within an open-top, for example, glass container, the liquid having a high flash point and containing in solution a flame-colouring amount of at least one flame-colouring additive. The float portion of the wick holder holds the wick with its lower part within the liquid and its upper part, which forms a burning end, spaced from the surface of the body of liquid to an extent which prevents ignition thereof during use. The liquid can contain a dye to enhance its appearance, and optionally also a perfume.
Inventors
- 👤 R Woollard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:25
CPC Classifications
F; F21; F21V; F21V37/00; F21V37/0095; F21S; F21S13/00; F21S13/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
20 words
A liquid candle as claimed in claim 1, wherein said liquid also contains in solution light stable dye colouring matter.
Claim 2
Dependent Claim
17 words
A liquid candle as claimed in claim 1, wherein said liquid also contains in solution a perfume.
Claim 3
Dependent Claim
20 words
A liquid candle as claimed in claim 1, wherein said liquid contains at least one metal acetate as flame-colouring additive.
Claim 4
Dependent Claim
14 words
A liqUid candle, as in claim 1, wherein the combustible liquid is ethane diol.
Claim 5
Dependent Claim
26 words
A liquid candle, as in claim 5, wherein the ethane diol contains from 1.3 to 1.7 percent by weight of boric acid as a flame-coloring additive.
Claim 6
Dependent Claim
26 words
A liquid candle, as in claim 5, wherein the ethane diol contains from 0.2 to 0.4 percent by weight of lithium acetate as a flame-coloring additive.
Claim 7
Dependent Claim
27 words
A liquid candle, as in claim 7, wherein the ethane diol contains from 0.2 to 0.4 percent by weight of potassium chloride as an additional flame-coloring additive.
Claim 8
Dependent Claim
26 words
A liquid candle, as in claim 5, wherein the ethane diol contains from 0.2 to 0.5 percent by weight of potassium chloride as a flame-coloring additive.
Claim 9
Dependent Claim
26 words
A liquid candle, as in claim 1, wherein the float has a sidewall upstanding from the base portion to a height greater than the tubular portion.
Claim 10
Dependent Claim
18 words
A liquid candle, as in claim 1, wherein the base of the float is a convex conical form.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |