US3106995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bolted open-web structural assemblies
Assignee: Individual
•
Filing: 1961-12-19
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Granted: 1963-10-15
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Expires: 1981-12-19
Abstract
No abstract record available.
Inventors
- 👤 Abramson Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:02
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/08; E04C2003/0486; E04C2003/0491
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
AN OPEN-WEB BOLTED STRUCTURAL JOIST COMPRISING AN UPPER CHORD HAVING A PAIR OF SPACED LEGS PROVIDED WITH ALIGNED OPENINGS AT SPACED POINTS THEREALONG, A LOWER CHORD HAVING A SECOND PAIR OF SPACED LEGS ALSO PROVIDED WITH ALIGNED OPENINGS THEREALONG, WEB MEMBERS IN THE FORM OF A CONTINUOUS BAR EXTENDING IN ZIGZAG RELATION IN THE SPACES BETWEEN THE RESPECTIVE LEGS OF SAID CHORDS, THE STRAIGHT PORTIONS OF THE BAR BEING INTEGRAL WITH AND TANGENT TO A CURVED SECTOR AT EACH CHANGE IN DIRECTION OF SAID BAR, BIPARTITE CLAMPING MEANS INCLUDING A SEPARABLE JUNCTION DEVICE EMBRACING SUBSTANTIALLY THE ENTIRE EXTERIOR SURFACE OF SAID BAR AT EACH CURVED SECTOR, SAID
Claim 2
Dependent Claim
107 words
AN OPEN-WEB BOLTED STRUCTURAL JOIST COMPRISING AN UPPER CHORD HAVING A PAIR OF SPACED LEGS PROVIDED WITH ALIGNED OPENINGS AT SPACED POINTS THEREALONG, A LOWER CHORD HAVING A SECOND PAIR OF SPACED LEGS ALSO PROVIDED WITH ALIGNED OPENINGS THEREALONG, WEB MEMBERS IN THE FORM OF A CONTINUOUS BAR EXTENDING IN ZIGZAG RELATION IN THE SPACES BETWEEN THE RESPECTIVE LEGS OF SAID CHORDS, THE STRAIGHT PORTIONS OF THE BAR BEING INTEGRAL WITH AND TANGENT TO A CURVED SECTOR AT EACH CHANGE IN DIRECTION OF SAID BAR, BIPARTITE CLAMPING MEANS INCLUDING A SEPARABLE JUNCTION DEVICE EMBRACING SUBSTANTIALLY THE ENTIRE EXTERIOR SURFACE OF SAID BAR AT EACH CURVED SECTOR, SAID
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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |