Patent US3719386A successfully refreshed from Google Patents.
US3719386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible trailers
Assignee: Individual
•
Filing: 1970-07-22
•
Granted: 1973-03-06
•
Expires: 1990-07-22
Abstract
Abstract AN EXPANSIBLE TRAILER HAVING A PAIR OF TELESCOPING TRAILER SECTIONS AND A FOLDING FLOOR UNIT WITHIN ONE OF THE TRAILER SECTIONS. THE TELESCOPING TRAILER SECTIONS ARE RELATIVELY EXTENDED AND RETRACTED BY A HYDRAULICALLY ACTUATED LINKING MECHANISM. FOLDING FLOOR JOISTS FOR SUPPORTING THE EXTENDED TRAILER SECTION ARE ALSO DISCLOSED. TRACKS AND ROLLERS FOR GUIDING THE EXTENDED TRAILER SECTIONS ARE ALSO DISCLOSED. D R A W I N G
Inventors
- 👤 S Lambert
- 👤 R Puckett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:46
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/343; E04B1/34336; B; B60; B60P; B60P3/00; B60P3/32; B60P3/34; E04B1/34305; E04B1/3431
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) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |