Patent US3157255A successfully refreshed from Google Patents.
US3157255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet metal englosures
Assignee: PREFORM ENGINEERING Co
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Filing: 1963-01-08
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Granted: 1964-11-17
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Expires: 1983-01-08
Abstract
No abstract record available.
Inventors
- 👤 Sondheim Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:32
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/14; E04H17/16; E04H17/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN A SHEET METAL ENCLOSURE STRUCTURE, A PLURALITY OF PREFABRICATED FRAMED CORRUGATED SHEET METAL PANELS HAVING HORIZONTALLY EXTENDING SLOTS THEREIN NEAR OPPOSITE ENDS THEREOF AND NEAR THE TOPS AND BOTTOMS OF THE PANELS, SUPPORTING SHEET METAL POSTS FOR SAID PANELS ADAPTED TO BE ANCHORED IN THE GROUND AND BEING PREFABRICATED AND INCLUDING NUTS WELDED THERETO FOR REGISTRY WITH SAID PANEL
Claim 2
Dependent Claim
60 words
IN A SHEET METAL ENCLOSURE STRUCTURE, A PLURALITY OF PREFABRICATED FRAMED CORRUGATED SHEET METAL PANELS HAVING HORIZONTALLY EXTENDING SLOTS THEREIN NEAR OPPOSITE ENDS THEREOF AND NEAR THE TOPS AND BOTTOMS OF THE PANELS, SUPPORTING SHEET METAL POSTS FOR SAID PANELS ADAPTED TO BE ANCHORED IN THE GROUND AND BEING PREFABRICATED AND INCLUDING NUTS WELDED THERETO FOR REGISTRY WITH SAID PANEL
References Cited (Backward Citations)
GB536737A
Cited
US3127703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |