Patent US3100568A successfully refreshed from Google Patents.
US3100568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective cover
Assignee: United States Stoneware Co
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Filing: 1962-04-19
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Granted: 1963-08-13
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Expires: 1982-04-19
Abstract
No abstract record available.
Inventors
- 👤 Allen A Harkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:18
CPC Classifications
C; C23; C23G; C23G3/00; Y; Y10; Y10S; Y10S220/00; Y10S220/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN COMBINATION WITH A TANK WITH A VERTICAL WALL HAVING A HORIZONTAL CHANNEL SUPPORTED AT SUBSTANTIALLY ITS MIDDLE ON THE WALL WITH EACH EDGE OF THE CHANNEL PROVIDED WITH A DOWNWARDLY POINTED PROJECTION, AN EXTRUDED PLASTIC PROTECTIVE COVER ON EACH SIDE OF THE WALL, EACH COVER WITH AN UPPER AND LOWER EXPANSE AGAINST THE UPPER AND LOWER SURFACES OF THE CHANNEL EXTENDING IN OPPOSITE DIRECTIONS FROM THE WALL, THE UPPER EXPANSE OF THE COVER EXTENDED OUTWARDLY BEYOND ITS LOWER EXPANSE WITH THE OUTER EDGES THEREOF CONNECTED RESPECTIVELY TO THE UPPER ENDS OF A V WHICH COVERS SAID PROJECTION AT THAT EDGE OF THE CHANNEL, AND EACH WITH A DOWNWARDLY DIRECTED FLANGE AT THE INNER EDGE OF ITS LOWER EXPANSE ADHERED TO THE WALL, WITH FLANGES ON THE INNER EDGES OF THE UPPER EXPANSES ADHERED TO ONE ANOTHER.
Claim 2
Dependent Claim
137 words
IN COMBINATION WITH A TANK WITH A VERTICAL WALL HAVING A HORIZONTAL CHANNEL SUPPORTED AT SUBSTANTIALLY ITS MIDDLE ON THE WALL WITH EACH EDGE OF THE CHANNEL PROVIDED WITH A DOWNWARDLY POINTED PROJECTION, AN EXTRUDED PLASTIC PROTECTIVE COVER ON EACH SIDE OF THE WALL, EACH COVER WITH AN UPPER AND LOWER EXPANSE AGAINST THE UPPER AND LOWER SURFACES OF THE CHANNEL EXTENDING IN OPPOSITE DIRECTIONS FROM THE WALL, THE UPPER EXPANSE OF THE COVER EXTENDED OUTWARDLY BEYOND ITS LOWER EXPANSE WITH THE OUTER EDGES THEREOF CONNECTED RESPECTIVELY TO THE UPPER ENDS OF A V WHICH COVERS SAID PROJECTION AT THAT EDGE OF THE CHANNEL, AND EACH WITH A DOWNWARDLY DIRECTED FLANGE AT THE INNER EDGE OF ITS LOWER EXPANSE ADHERED TO THE WALL, WITH FLANGES ON THE INNER EDGES OF THE UPPER EXPANSES ADHERED TO ONE ANOTHER.
References Cited (Backward Citations)
US2858038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |