Patent US2674015A successfully refreshed from Google Patents.
US2674015A
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Insulating panel
Assignee: Skydyne Inc
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Filing: 1947-09-08
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Granted: 1954-04-06
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Expires: 1967-09-08
Abstract
No abstract record available.
Inventors
- 👤 Steven E Mautner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:23
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/941; E04B1/942; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457; Y10T428/24612; Y10T428/249921; Y10T428/249953; Y10T428/249954
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN A PANEL OF THE CHARACTER INDICATED, A CORE OF A CELLULOSE MATERIAL, SAID CORE HAVING A PLURALITY OF OPENING ON ONE FACE THEREOF, A SALT HAVING SUBSTANTIAL WATER OF CRYSTALLIZATION IN SAID OPENINGS AND LEVELED OFF FLUSH WITH SAID FACE, AND A RELATIVELY THIN METAL SHEATH ON OPPOSITE SIDES OF SAID CORE.
Claim 2
Dependent Claim
53 words
IN A PANEL OF THE CHARACTER INDICATED, A CORE OF A CELLULOSE MATERIAL, SAID CORE HAVING A PLURALITY OF OPENING ON ONE FACE THEREOF, A SALT HAVING SUBSTANTIAL WATER OF CRYSTALLIZATION IN SAID OPENINGS AND LEVELED OFF FLUSH WITH SAID FACE, AND A RELATIVELY THIN METAL SHEATH ON OPPOSITE SIDES OF SAID CORE.
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) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |