Patent US3296755A successfully refreshed from Google Patents.
US3296755A
Expired / Lapsed
US
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Structural panels and structures therefrom
Assignee: Dow Chemical Co
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Filing: 1962-05-28
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Granted: 1967-01-10
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Douglas S Chisholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:49
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/40; E04C2/405; E04B; E04B7/00; E04B7/08; E04B7/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
57 words
A GENERALLY SPHERICAL STRUCTURE COMPRISING A PLURALITY OF STRUCTURAL PANELS, SAID STRUCTURAL PANELS BEING OF A GENERALLY TRIANGULAR CONFIGURATION AND HAVING ANGLES A, B AND C, SAID ANGLES BEING ABOUT 34*36'', 58*7'' AND 87*17'', RESPECTIVELY, SAID PANELS BEING JOINED TOGETHER WITH SIMILAR EDGES IN TOTALLY ABUTTING ARRANGEMENT AND LIKE ANGLES ADJACENT TO FORM A GENERALLY SPHERICAL SURFACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |