US4073612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable cigarette gas lighter
Assignee: Tokai Seiki Co Ltd
•
Filing: 1976-03-17
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Granted: 1978-02-14
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Expires: 1996-03-17
Abstract
Abstract A disposable cigarette gas lighter employing a plastic gas tank is provided on the face of the gas tank with a printed sheet carrying thereon publicity information. The gas tank is provided with a recess to receive the printed sheet and a plastic lens is attached thereover. Otherwise, the plastic lens is provided on the back surface thereof with a recess to receive the printed sheet. The plastic lens is formed as a cylindrical positive lens.
Inventors
- 👤 Tomio Nitta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:18
CPC Classifications
G; G09; G09F; G09F23/00; F; F23; F23Q; F23Q2/00; F23Q2/34; F23Q2/36; F23Q2/42; G09F2023/0041
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
141 words
A disposable cigarette gas lighter comprising a plastic gas tank containing therein a liquefied fuel gas, said gas tank having a recess on the surface thereof, lighting means mounted on said plastic gas tank, a printed sheet having printed thereon publicity information, said printed sheet being disposed in the recess, and a transparent plastic lens disposed within said recess and directly attached to the gas tank over the printed sheet to hold and protect the printed sheet, wherein said plastic lens has a projection intergrally fixed thereof on the back surface thereof, and said recess is provided with a hole to receive said projection of said lens, wherein said printed sheet is provided with a perforation to allow said projection of said lens to extend therethrough, said plastic lens has a front surface forwardly curved to form a positive cylindrical lens.
Claim 2
Dependent Claim
141 words
A disposable cigarette gas lighter comprising a plastic gas tank containing therein a liquefied fuel gas, said gas tank having a recess on the surface thereof, lighting means mounted on said plastic gas tank, a printed sheet having printed thereon publicity information, said printed sheet being disposed in the recess, and a transparent plastic lens disposed within said recess and directly attached to the gas tank over the printed sheet to hold and protect the printed sheet, wherein said plastic lens has a projection intergrally fixed thereof on the back surface thereof, and said recess is provided with a hole to receive said projection of said lens, wherein said printed sheet is provided with a perforation to allow said projection of said lens to extend therethrough, said plastic lens has a front surface forwardly curved to form a positive cylindrical lens.
Claim 3
Dependent Claim
29 words
A disposable cigarette gas lighter as defined in claim 1 wherein said recess has side edges and said plastic lens is engaged with the side edges of said recess.
Claim 4
Dependent Claim
21 words
A disposable cigarette gas lighter as defined in claim 1 wherein said plastic lens is removably mounted to the gas tank.
Claim 5
Dependent Claim
50 words
A disposable cigarette gas lighter as defined in claim 1 wherein said plastic lens has a pair of projections integrally fixed thereto on the back surface thereof in the upper and lower portions thereof, and said recess is provided with a pair of holes to receive said pair of projections.
Claim 6
Dependent Claim
28 words
A disposable cigarette gas lighter as defined in claim 4 wherein said printed sheet is provided with a pair of perforations to allow said projections to extend therethrough.
Claim 7
Dependent Claim
26 words
A disposable cigarette gas lighter as defined in claim 1 wherein said printed sheet is located at the center of a face of the gas tank.
Claim 8
Dependent Claim
16 words
A disposable cigarette gas lighter as defined in claim 6 wherein said printed sheet is rectangular.
Claim 9
Dependent Claim
16 words
A disposable cigarette gas lighter as defined in claim 6 wherein said printed sheet is oval.
Claim 10
Dependent Claim
16 words
A disposable cigarette gas lighter as defined in claim 6 wherein said printed sheet is circular.
Claim 11
Dependent Claim
18 words
A disposable cigarette gas lighter as defined in claim 1 wherein said printed sheet is made of paper.
References Cited (Backward Citations)
US2052689A
Cited
US2611202A
Cited
US2759280A
Cited
US2781594A
Cited
US3204356A
Cited
US3769725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |