US3341395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight structural panel
Assignee: Solar Reflection Room Corp
•
Filing: 1962-12-03
•
Granted: 1967-09-12
•
Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 John F Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:51
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/3405; E04C2002/3444; E04C2002/345; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24314; Y10T428/24322; Y10T428/24628; Y10T428/24669; Y10T428/24686; Y10T428/24694
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A STRUCTURAL PANEL COMPRISING: A PAIR OF PARALLEL SKIN MEMBERS IN SPACED, OPPOSING RELATION, SAID SKIN MEMBERS OF SHEET PLASTIC MATERIAL; AND A CORE OF SHEET MATERIAL SECURED TO AND EXTENDING BETWEEN SAID SKIN MEMBERS AND COEXTENSIVE THEREWITH, SAID CORE HAVING SPACED PARALLEL PORTIONS EXTENDING TRANSVERSELY OF THE PANEL, SAID SPACED PARALLEL PORTIONS INCLINED TO THE PLANES OF SAID SKIN MEMBERS, THE MARGINS OF SAID SPACED PARALLEL PORTIONS EMBEDDED IN SAID SKIN MEMBERS AND HAVING SPACED APERTURES LO-
Claim 2
Dependent Claim
78 words
A STRUCTURAL PANEL COMPRISING: A PAIR OF PARALLEL SKIN MEMBERS IN SPACED, OPPOSING RELATION, SAID SKIN MEMBERS OF SHEET PLASTIC MATERIAL; AND A CORE OF SHEET MATERIAL SECURED TO AND EXTENDING BETWEEN SAID SKIN MEMBERS AND COEXTENSIVE THEREWITH, SAID CORE HAVING SPACED PARALLEL PORTIONS EXTENDING TRANSVERSELY OF THE PANEL, SAID SPACED PARALLEL PORTIONS INCLINED TO THE PLANES OF SAID SKIN MEMBERS, THE MARGINS OF SAID SPACED PARALLEL PORTIONS EMBEDDED IN SAID SKIN MEMBERS AND HAVING SPACED APERTURES LO-
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |