Patent US3820223A successfully refreshed from Google Patents.
US3820223A
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US
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Trailer cap and method of forming same
Assignee: NEW BUS COMPANY A DE CORP
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Filing: 1973-02-06
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Granted: 1974-06-28
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Expires: 1993-02-06
Abstract
Abstract A TRAILER CAP FORMING A CLOSURE BETWEEN THE ROOF AND FRONT END WALL OF A TRAILER OF THE TYPE HAVING A CURVED FRONT END WALL AND A CURVED OR BOWED ROOF IN WHICH THE CAP IS FORMED BY A MALE AND FEMALE DIE IN A METAL PRESS.
Inventors
- 👤 C Cramb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:56
CPC Classifications
B; B60; B60P; B60P7/00; B60P7/02; B21; B21D; B21D22/00; B21D22/02; B21D53/00; B21D53/88; B60D; B60D1/00; B60D1/58; B60D1/62; B60J; B60J7/00; B60J7/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49794
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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |