US3290075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking runner connection
Assignee: Chicago Metallic Co LLC
•
Filing: 1964-01-20
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Granted: 1966-12-06
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Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Martin D Jahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:31
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/067; E04B9/08; E04B9/12; E04B9/122; Y; Y10; Y10S; Y10S52/00; Y10S52/05; Y10T; Y10T403/00; Y10T403/44; Y10T403/447
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
A RUNNER CONSTRUCTED FOR INTERLOCKING WITH A PAIR OF COOPERABLE RUNNERS, COMPRISING A BODY PORTION TERMINATING AT ONE LONGITUDINAL EDGE IN OPPOSITELY DISPOSED FLANGE PORTIONS AND AT ITS OPPOSITE LONGITUDINAL EDGE IN A REINFORCING MEMBER, SAID BODY PORTION HAVING AN OPENING THEREIN OF A SIZE TO RECEIVE RESPECTIVE TONGUES FORMED ON SUCH COOPERABLE RUNNERS WITH SAID TONGUES IN SIDE-BY-SIDE RELATION, SAID OPENING BEING FORMED WITH AN INWARDLY DIRECTED PROJECTION OF GENERALLY TRIANGULAR SHAPE AT EACH SIDE OF SAID OPENING, EACH PROJECTION HAVING A BOTTOM EDGE EXTENDING SUBSTANTIALLY PARALLEL TO THE PLANE OF SAID FLANGE PORTIONS AND HAVING A SIDE EDGE WHICH IS INCLINED WITH RESPECT TO SUCH PLANE.
References Cited (Backward Citations)
CA656186A
Cited
US2903104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |