Variable dimension door liner panel
Abstract
Abstract A DOOR LINER, SUCH AS WOULD BE EMPLOYED ON RAILROAD REFRIGERATOR CARS IS FORMED OF TWO HALF PANELS WHICH ARE FABRICATED IN THE SAME MOLD AND MAY BE JOINED IN A LAP JOINT SPLICE ALONG A HORIZONTAL CENTER LINE OF THE PANEL. THE LAP JOINT SPLICE IS PROVIDED BY COMPLEMENTARY, OFFSET, LAP JOINT EDGES, WITH EACH HALF PANEL OVERLAPPING PART OF THE OFFSET LAP JOINT EDGE OF THE OTHER. THE HALF PANELS HAVE CENTER CHANNELS ALONG THEIR VERTICAL CENTER LINES, THE CHAMNELS HAVING A CENTRAL OFFSET TO DIVIDE THE CHANNELS INTO TWO LEVELS. IN ORDER TO VARY THE WIDTH OF THE DOOR LINER, EACH HALF PANEL IS SAWED INTO TWO QUARTER PANELS ALONG THE OFFSET IN THE CENTER CHANNELS, THUS FORMING LAP JOINT EDGES WHICH MAY BE OVERLAPPED AND JOINED AS WITH THE HORIZONTAL LAP JOINTS TO FORM THE FULL DOOR LINER.
Inventors
- 👤 Harold E Vickerman
Bibliographic Details
Claims Analysis
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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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |