US3305986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated enclosures and panels therefor
Assignee: Foam Products Corp
•
Filing: 1962-08-07
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Granted: 1967-02-28
•
Expires: 1982-08-07
Abstract
No abstract record available.
Inventors
- 👤 Howard G Mathews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:59
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/06; F25D23/062; F25D23/063
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
A LAMINATE PANEL COMPRISING A CORE OF LOW THERMAL CONDUCTIVITY, AN INNER COVER AND AN OUTER COVER SECURED TO SAID CORE, AND REINFORCING FRAME MEANS BETWEEN SAID COVERS, SAID REINFORCING FRAME MEANS INCLUDING A LONGITUDINAL FRAME MEMBER POSITIONED AT ONE EDGE OF SAID PANEL AND EXTENDING OUTWARDLY A SLIIGHT DISTANCE BEYOND SAID COVERS IN THE REGION OF SAID ONE EDGE, SAID FRAME MEMBER INCLUDING METAL ELEMENTS JOINED AT SPACED INTERVALS BY INSULATING SPACER ELEMENTS, AND INSULATING MEANS COVERING THE OUTERMOST ENDS OF SAID METAL ELEMENTS, SAID COVERS AT THE OPPOSITE EDGE OF SAID PANEL EXTENDING BEYOND SAID CORE A DISTANCE CORRESPONDING TO THE PROJECTION OF SAID FRAME MEMBER WHEREBY INTEGRAL JOINTS ARE FORMED ADAPTED TO BE ENGAGED BY COMPLEMENTARY JOINTS OF ADJACENT PANELS.
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |