US3457629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming an industrial oven wall construction
Assignee: RC Mahon Co
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Filing: 1966-12-07
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Granted: 1969-07-29
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Expires: 1986-12-07
Abstract
No abstract record available.
Inventors
- 👤 Louis J Janecek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:55
CPC Classifications
F; F27; F27D; F27D99/00; F27D99/0073; B; B21; B21D; B21D49/00; E; E04; E04B; E04B2/00; E04B2/72; E04D; E04D15/00; E04D15/04; E04D3/00; E04D3/36; E04D3/368; F27D1/00; F27D1/14; F27D1/145; F27D1/16; F27D1/04; F27D1/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879; Y10T29/49908; Y10T29/49924; Y10T29/49925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE METHOD OF FORMING A VAPOR IMPERMEABLE WALL CONSTRUCTION WHICH COMPRISES ASSEMBLING FIRST AN INNER WALL OF SHEET METAL PANELS, EACH PANEL HAVING A CENTRAL PORTION, A CONTINUOUS FLANGE EXTENDING ALONG ONE SIDE EDGE THEREOF AND A CONTINUOUS RE-ENTRANT BENT PORTION EXTENDING ALONG THE OTHER SIDE EDGE THEREOF INTO WHICH THE FLANGE OF THE THE ADJACENT PANEL EXTENDS TO FORM A JOINT ON THE OUTER SURFACE OF THE INNER WALL,
Claim 2
Independent Claim
70 words
THE METHOD OF FORMING A VAPOR IMPERMEABLE WALL CONSTRUCTION WHICH COMPRISES ASSEMBLING FIRST AN INNER WALL OF SHEET METAL PANELS, EACH PANEL HAVING A CENTRAL PORTION, A CONTINUOUS FLANGE EXTENDING ALONG ONE SIDE EDGE THEREOF AND A CONTINUOUS RE-ENTRANT BENT PORTION EXTENDING ALONG THE OTHER SIDE EDGE THEREOF INTO WHICH THE FLANGE OF THE THE ADJACENT PANEL EXTENDS TO FORM A JOINT ON THE OUTER SURFACE OF THE INNER WALL,
References Cited (Backward Citations)
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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) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |