US3555753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete slab joint construction
Assignee: Individual
•
Filing: 1968-09-09
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Granted: 1971-01-19
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Expires: 1988-09-09
Abstract
Abstract A CONSTRUCTION FOR JOINTS BETWEEN CONCRETE SLABS THAT ALLOWS THE ADJACENT SLABS TO SHRINK WITHOUT CRACKING THE SLABS OR DESTROYING WALL STRUCTURES OR OTHER DEVICES THAT MIGHT BE RIGIDLY MOUNTED TO SUCH SLABS. THE JOINT IS SO DESIGNED THAT IT IS REINFORCED AND SELF-SUPPORTING AND ALLOWS OTHER CONSTRUCTION WORK TO CONTINUE WHILE THE NORMAL SHRINKAGE IS TAKING PLACE.
Inventors
- 👤 Charles R Magadini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:44
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/06; E04B; E04B5/00; E04B5/02; E04B5/023; E04B5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |