Patent US4490954A successfully refreshed from Google Patents.
US4490954A
Expired / Lapsed
US
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Masking cover for a wall surface around a pipe which emerges therefrom
Assignee: Individual
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Filing: 1982-06-25
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Granted: 1985-01-01
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Expires: 2002-06-25
Abstract
Abstract A masking cover for a wall surface 16 around a pipe 15 which emerges therefrom, constituted by two circular concentric plates 10 and 11 each provided with a radial slot 13 having parallel edges which are connected together by a semicircular portion 14 having its center coinciding with that of the plates 10 and 11, the plates being arranged for mounting by way of their slot 13 around the pipe 15 in order to form a single stable facing in the form of a circular masking cover.
Inventors
- 👤 Alfio Cresti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:49
CPC Classifications
F; F16; F16L; F16L5/00; E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/042; E03C2201/00; E03C2201/50; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A masking cover for a wall surface around a pipe which emerges therefrom, characterized by comprising two circular concentric plates 10 and 11 each provided with a radial slot 13 having parallel edges which are connected together by a semicircular portion 14 having its center coinciding with that of the plates 10 and 11 and its diameter equal to the width of the slot, each plate 9 and 10 having a bent-over substantially continuous circular peripheral rim 12 of which one fits within the other with a slight interference fit when the two plates are fitted together thereby to restrain said plates 9 and 10 against movement in any direction relative to each other.
Claim 2
Dependent Claim
114 words
A masking cover for a wall surface around a pipe which emerges therefrom, characterized by comprising two circular concentric plates 10 and 11 each provided with a radial slot 13 having parallel edges which are connected together by a semicircular portion 14 having its center coinciding with that of the plates 10 and 11 and its diameter equal to the width of the slot, each plate 9 and 10 having a bent-over substantially continuous circular peripheral rim 12 of which one fits within the other with a slight interference fit when the two plates are fitted together thereby to restrain said plates 9 and 10 against movement in any direction relative to each other.
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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) | 1988-01-01 | 1988-07-02 | 1989-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-01 | 1992-07-02 | 1993-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-01 | 1996-07-02 | 1997-01-01 | $7700.00 | Window Closed / Lapsed |