US3273473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road expansion joint
Assignee: Individual
•
Filing: 1963-12-05
•
Granted: 1966-09-20
•
Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 Robert L Pare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:27
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
AN EXPANSION JOINT BETWEEN TWO SPACED STRUCTURAL ELEMENTS DEFINING AN EXPANSION GAP COMPRISING AN ELASTOMER BLOCK WHOSE MIDPORTION SPANS SAID GAP, A RIGID PLATE EMBEDDED IN SAID ELASTOMER BLOCK, SAID PLATE LYING ABOVE AND SPANNING SAID GAP, SAID ELASTOMER BLOCK HAVING A SUBSTANTIALLY PLANE SURFACE ADAPTED TO SERVE AS A PORTION OF A ROADBED WITH SAID PLATE BEING SUBSTANTIALLY PARALLEL TO SAID PLANE PORTION, SAID ELASTOMER BLOCK BEING POSITIONED WITHIN UPPER RECESSES IN SAID SPACED STRUCTURAL ELEMENTS WITH END PORTIONS OF SAID ELASTOMER BLOCK BEING ANCHORED TO SAID STRUCTURAL ELEMENTS, SAID PLATE BEING POSITIONED ABOVE THE HORIZONTAL CENTROID OF SAID ELASTOMER BLOCK, MEANS FOR MAINTAINING THE POSITION OF SAID PLATE FIXED RELATIVE TO SAID STRUCTURAL ELEMENTS, SAID ELASTOMER BLOCK PROVIDED WITH A PLURALITY OF VOIDS LOCATED BETWEEN THE ENDS OF SAID ELASTOMER BLOCK AND SAID PLATE IN THE REGION GENERALLY BELOW SAID PLATE.
Claim 2
Dependent Claim
143 words
AN EXPANSION JOINT BETWEEN TWO SPACED STRUCTURAL ELEMENTS DEFINING AN EXPANSION GAP COMPRISING AN ELASTOMER BLOCK WHOSE MIDPORTION SPANS SAID GAP, A RIGID PLATE EMBEDDED IN SAID ELASTOMER BLOCK, SAID PLATE LYING ABOVE AND SPANNING SAID GAP, SAID ELASTOMER BLOCK HAVING A SUBSTANTIALLY PLANE SURFACE ADAPTED TO SERVE AS A PORTION OF A ROADBED WITH SAID PLATE BEING SUBSTANTIALLY PARALLEL TO SAID PLANE PORTION, SAID ELASTOMER BLOCK BEING POSITIONED WITHIN UPPER RECESSES IN SAID SPACED STRUCTURAL ELEMENTS WITH END PORTIONS OF SAID ELASTOMER BLOCK BEING ANCHORED TO SAID STRUCTURAL ELEMENTS, SAID PLATE BEING POSITIONED ABOVE THE HORIZONTAL CENTROID OF SAID ELASTOMER BLOCK, MEANS FOR MAINTAINING THE POSITION OF SAID PLATE FIXED RELATIVE TO SAID STRUCTURAL ELEMENTS, SAID ELASTOMER BLOCK PROVIDED WITH A PLURALITY OF VOIDS LOCATED BETWEEN THE ENDS OF SAID ELASTOMER BLOCK AND SAID PLATE IN THE REGION GENERALLY BELOW SAID PLATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |