US3094812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precast unit for forming a hyperbolic paraboloidal roof structure
Assignee: Individual
•
Filing: 1959-06-22
•
Granted: 1963-06-25
•
Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Lawrence F Peeler
- 👤 Foy Eugene L La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:30
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/08; E04B7/10; E04B7/102
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
A PRECAST CONCRETE UNIT FOR FORMING A HYPERBOLIC PARABOLOIDAL ROOF STRUCTURE, COMPRISING, A SLAB HAVING GREATER LENGTH THAN WIDTH AND FORMED WITH RIBS DEPENDING IN PARALLEL PLANES FROM THE LONGITUDINAL EDGES THEREOF, A REENFORCING ROD EMBEDDED LONGITUDINALLY IN EACH OF SAID RIBS AND EXTENDING BEYOND THE ENDS THEREOF, A PLURALITY OF SPACED RIBS FORMED TRANSVERSELY OF SAID SLAB BETWEEN SAID LONGITUDINAL RIBS, EACH HAVING A PLURALITY OF BORES THERETHROUGH ADAPTED TO RECEIVE A CABLE FOR CONNECTING A PLURALITY OF SAID SLAB IN JUXTAPOSED RELATION IN A ROOF STRUCTURE, THE SAID SLAB BEING TWISTED ALONG ITS LONGITUDINAL AXIS.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |