Patent US3563407A successfully refreshed from Google Patents.
US3563407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tearaway tongue for gastight container
Assignee: Individual
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Filing: 1969-01-27
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Granted: 1971-02-16
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Expires: 1989-01-27
Abstract
Abstract The cover for a gastight container for a breathing apparatus has formed in one piece therewith a tearaway tongue which when pulled off leaves a hole through the cover.
Inventors
- 👤 Karl-August Wachter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:28
CPC Classifications
A; A62; A62B; A62B25/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
108 words
An airtight container for a breathing apparatus and especially for an apparatus having a moisture sensitive filter medium comprising a lower container portion, and an upper cover, airtight sealing means joining said container portion to said cover, a tongue (51) having a thickened rear end (54) joined to said cover, said tongue and cover being of a single piece of the same material, a recess (56) in the inner surface of said cover and extending beyond the outer surface (55) of said cover into said thickened rear end for defining a breaking line (58) approximately in the plane (57) on the tongue side of said thickened end (54).
Claim 2
Dependent Claim
108 words
An airtight container for a breathing apparatus and especially for an apparatus having a moisture sensitive filter medium comprising a lower container portion, and an upper cover, airtight sealing means joining said container portion to said cover, a tongue (51) having a thickened rear end (54) joined to said cover, said tongue and cover being of a single piece of the same material, a recess (56) in the inner surface of said cover and extending beyond the outer surface (55) of said cover into said thickened rear end for defining a breaking line (58) approximately in the plane (57) on the tongue side of said thickened end (54).
Claim 3
Dependent Claim
28 words
A container as in claim 1, said outer surface being the bottom of a channel (50) in said cover, and said tongue being mounted entirely within said channel.
References Cited (Backward Citations)
US3415412A
Cited
US3458080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |