Patent US3304070A successfully refreshed from Google Patents.
US3304070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water cooled skid rails
Assignee: Stein Atkinson Stordy Ltd
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Filing: 1961-10-30
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Granted: 1967-02-14
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Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jones John Frederick Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:16
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/02; F27D3/022; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49359
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A WATER COOLED FURNACE SKID RAIL COMPRISING A TUBE HAVING SUCH A TRANSVERSE CROSS-SECTIONAL SHAPE THAT ITS VERTICAL HEIGHT IS GREATER THAN ITS HORIZONTAL WIDTH MEASURED AT THE MID POINT OF ITS HEIGHT, A PLURALITY OF SUPPORTING RAILS EXTENDING AT SPACED APART LOCATIONS TRANSVERSELY OF AND BELOW SAID SKID RAIL, SUPPORT MEANS WELDED TO THE SUPPORT RAILS TO PROJECT UPWARDLY THEREFROM, UPWARDLY FACING SLOTS IN THE SUPPORT MEANS, AND SAID SKID RAIL BEING DISPOSED IN THE SLOTS SO THAT TURNING MOVEMENT OF THE SKID RAIL ABOUT ITS LONGITUDINAL AXIS IS PREVENTED.
Claim 2
Dependent Claim
91 words
A WATER COOLED FURNACE SKID RAIL COMPRISING A TUBE HAVING SUCH A TRANSVERSE CROSS-SECTIONAL SHAPE THAT ITS VERTICAL HEIGHT IS GREATER THAN ITS HORIZONTAL WIDTH MEASURED AT THE MID POINT OF ITS HEIGHT, A PLURALITY OF SUPPORTING RAILS EXTENDING AT SPACED APART LOCATIONS TRANSVERSELY OF AND BELOW SAID SKID RAIL, SUPPORT MEANS WELDED TO THE SUPPORT RAILS TO PROJECT UPWARDLY THEREFROM, UPWARDLY FACING SLOTS IN THE SUPPORT MEANS, AND SAID SKID RAIL BEING DISPOSED IN THE SLOTS SO THAT TURNING MOVEMENT OF THE SKID RAIL ABOUT ITS LONGITUDINAL AXIS IS PREVENTED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |