US3618273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: GEONETICS Inc
•
Filing: 1969-07-02
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Granted: 1971-11-09
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Expires: 1989-07-02
Abstract
Abstract A BUILDING INCLUDING ELONGATED STRUCTURAL MEMBERS JOINED TO ONE ANOTHER TO FORM A LATTICE STRUCTURE DEFING INTERCONNECTED AND ADJOINING TETRAHEDRAL FRAMES. MODULAR SPACE ENSLOSURES ARE SUPPORTED ON THE LATTICE STRUCTURE. THE TETRAHEDRAL FRAMES ARE DISPOSED IN MULTIPLE LEVELS. A FIRST SERIES OF ENCLOSURES ARE SUPPORTED ON ONE LEVEL OF FRAMES WHILE A SECOND SERIESS OF ENCLOSURES ARE SUPPORTED ON A HIGHER LEVEL OF FRAMES. THE ENCLOSURES MAY BE SUBSTANTIALLY SPHERICAL AND THE LOWER EXTREMITIES OF THE CENCLOSURES IN THE SECOND SERIES NEST BETWEEN THE UPPER EXTREMITIES OF THE ENCLOSURES IN THE FIRST SERIES.
Inventors
- 👤 George M Crandall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:28
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/348; E04B1/34807; E04B1/34; Y; Y10; Y10S; Y10S52/00; Y10S52/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |