US3466823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space form skeleton structures made of prefabricated tri-axial interlocking building elements having non-rigid force distributing connectors
Assignee: Individual
•
Filing: 1967-11-27
•
Granted: 1969-09-16
•
Expires: 1987-11-27
Abstract
No abstract record available.
Inventors
- 👤 Seamus Dowling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:38
CPC Classifications
E; E04; E04H; E04H12/00; E04B; E04B1/00; E04B1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA694157A
Cited
US1723216A
Cited
US1883376A
Cited
US2666394A
Cited
US3105999A
Cited
US3226894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |