USRE27147E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Landing mat
Assignee: INTERNATIONAL LIGHT METALS Corp
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Filing: 1969-11-04
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Granted: 1971-06-22
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Expires: 1989-11-04
Abstract
Abstract THIS INVENTION RELATES TO EXTRUDED METAL LANDING MATS HAVING DECK AND BASE PLATES SPACED BY MEANS OF PARALLEL RIBS WITH PRE-FORMED COMPLEMENTARY END CONNECTORS BEING WELDED TO OPPOSITE ENDS OF THE MAT. THE END OF THE MAT IS REINFORCED BY INSERTING INTO THE CHANNELS BETWEEN ADJACENT RIBS A HOLLOW PLUG HAVING AN END WALL COEXTENSIVE WITH END OF THE RIBS, THE END CONNECTED THEN BEING ELECTRON BEAM WELDED OVER ITS ENTIRE REAR FACE TO THE END WALL OF THE PLUG AND THE END OF THE RIBS, DECK, AND BASE PLATES.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:01
CPC Classifications
E; E01; E01C; E01C9/00; E01C9/08; E01C9/083
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |