US3850537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pavement construction
Assignee: Individual
•
Filing: 1972-10-31
•
Granted: 1974-11-26
•
Expires: 1992-10-31
Abstract
Abstract An improved pavement construction is provided wherein the pavement foundation includes a layer of resilient material to give increased resistance to cracking. As a subcombination, a pavement is disclosed including a layered asphaltic concrete improved by the addition of various scrap or waste materials. This abstract is not to be construed in any way to define or limit the invention set forth below.
Inventors
- 👤 D Bynum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:32
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/08; E01C7/18; E01C7/182; E01C11/00; E01C11/16; E01C11/165; E01C3/00; E01C3/06; E01C7/185
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
42 words
IN A PAVEMENT CONSTRUCTION OF THE TYPE INCLUDING UPPER AND LOWER LAYERS OF CONCRETE, THE IMPROVEMENT COMPRISING: AN INTERMEDIATE LAYER, DISPOSED BETWEEN SAID UPPER AND LOWER LAYERS, SAID INTERMEDIATE LAYER BEING FORMED OF A MATRIX OF RUBBER TIRE RINGS EMBEDDED IN SAND.
Claim 2
Dependent Claim
42 words
IN A PAVEMENT CONSTRUCTION OF THE TYPE INCLUDING UPPER AND LOWER LAYERS OF CONCRETE, THE IMPROVEMENT COMPRISING: AN INTERMEDIATE LAYER, DISPOSED BETWEEN SAID UPPER AND LOWER LAYERS, SAID INTERMEDIATE LAYER BEING FORMED OF A MATRIX OF RUBBER TIRE RINGS EMBEDDED IN SAND.
Claim 3
Dependent Claim
30 words
The pavement according to claim 1 wherein said tire rings are formed from whole tires cut about their perimeters perpendicular to their axes to form a plurality of annular sections.
Claim 4
Dependent Claim
21 words
The pavement according to claim 1 wherein said tire rings are disposed in said sand with their concave surfaces oriented upwardly.
Claim 5
Dependent Claim
17 words
A pavement comprising, upper and lower layers of concrete with an intermediate layer of shredded metal cans.
Claim 6
Dependent Claim
17 words
A pavement comprising, upper and lower layers of concrete with an intermediate layer of shredded metal cans.
Claim 7
Dependent Claim
17 words
The pavement of claim 4 wherein said metal cans are held in place with an adhesive binder.
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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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |