US3256786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete joint and loading transfer device
Assignee: Individual
•
Filing: 1962-06-11
•
Granted: 1966-06-21
•
Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 William F Middlestadt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:14
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A CONCRETE JOINT AND LOAD TRANSFER DEVICE ADAPTED TO BE INSERTED IN A SLAB OF CONCRETE COMPRISING A PAIR OF OPPOSING WALLS, LOAD TRANSFER MEANS NFORMED IN SAID OPPOSING WALLS, SAID LOAD TRANSFER MEANS COMPRISING CYLINDRICAL SHAPED PROJECTIONS IN SAID OPPOSING WALLS, EACH PROJECTION COMPRISING A CYLINDRICAL SIDE WALL AND AN ENCLOSING END WALL, SAID PROJECTIONS PROVIDING DEFORMATIONS IN BOTH SAID OPPOSING WALLS TO EXTEND ALTERNATELY ALONG THE LENGTH OF THE DEVICE TO OPPOSITE SIDES OF THE CENTER LINE EXTENDING BETWEEN SAID OPPOSING WALLS, SAID CYLINDRICAL
Claim 2
Dependent Claim
86 words
A CONCRETE JOINT AND LOAD TRANSFER DEVICE ADAPTED TO BE INSERTED IN A SLAB OF CONCRETE COMPRISING A PAIR OF OPPOSING WALLS, LOAD TRANSFER MEANS NFORMED IN SAID OPPOSING WALLS, SAID LOAD TRANSFER MEANS COMPRISING CYLINDRICAL SHAPED PROJECTIONS IN SAID OPPOSING WALLS, EACH PROJECTION COMPRISING A CYLINDRICAL SIDE WALL AND AN ENCLOSING END WALL, SAID PROJECTIONS PROVIDING DEFORMATIONS IN BOTH SAID OPPOSING WALLS TO EXTEND ALTERNATELY ALONG THE LENGTH OF THE DEVICE TO OPPOSITE SIDES OF THE CENTER LINE EXTENDING BETWEEN SAID OPPOSING WALLS, SAID CYLINDRICAL
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |