US3308726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seals for contraction and expansion joints in concrete pavements
Assignee: Individual
•
Filing: 1963-10-29
•
Granted: 1967-03-14
•
Expires: 1983-10-29
Abstract
No abstract record available.
Inventors
- 👤 Donald F Dreher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:09
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/12; E01C11/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
INSERTABLE DEFORMATIVE MEANS FOR SEALING MOTIONABLE JOINTS BETWEEN SECTIONS OF CONCRETE PAVING, COMPRISING A SYMMETRICAL ELASTOMERIC EXTRUSION HAVING A V-NOTCHED RECESS FORMED LONGITUDINALLY IN ITS UPPER MEDIAL SECTION, ITS TOP SURFACES SLOPED OUTWARD AND DOWNWARD THEREFROM, AND ITS SIDES INCLINED INWARD APPROXIMATELY PERPENDICULAR TO SAID SURFACES, WHEREBY WHEN THE EXTRUSION IS POSITIONED BETWEEN TWO OPPOSED FACES AND SUBJECTED TO COMPRESSION THEREBETWEEN THE MEDIAL PORTION WILL BE DEFLECTED DOWNWARD, THE V-NOTCH CLOSED, THE TOP SURFACES SUBSTANTIALLY ALIGNED AND THE SIDES CONFORMED TO SAID FACES.
Claim 2
Dependent Claim
83 words
INSERTABLE DEFORMATIVE MEANS FOR SEALING MOTIONABLE JOINTS BETWEEN SECTIONS OF CONCRETE PAVING, COMPRISING A SYMMETRICAL ELASTOMERIC EXTRUSION HAVING A V-NOTCHED RECESS FORMED LONGITUDINALLY IN ITS UPPER MEDIAL SECTION, ITS TOP SURFACES SLOPED OUTWARD AND DOWNWARD THEREFROM, AND ITS SIDES INCLINED INWARD APPROXIMATELY PERPENDICULAR TO SAID SURFACES, WHEREBY WHEN THE EXTRUSION IS POSITIONED BETWEEN TWO OPPOSED FACES AND SUBJECTED TO COMPRESSION THEREBETWEEN THE MEDIAL PORTION WILL BE DEFLECTED DOWNWARD, THE V-NOTCH CLOSED, THE TOP SURFACES SUBSTANTIALLY ALIGNED AND THE SIDES CONFORMED TO SAID FACES.
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |