Patent US3088774A successfully refreshed from Google Patents.
US3088774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom dump trailer construction
Assignee: Fruehauf Trailer Corp
•
Filing: 1959-03-18
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Granted: 1963-05-07
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Expires: 1979-03-18
Abstract
No abstract record available.
Inventors
- 👤 Bernstein Robert
- 👤 Donald V Zinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:23
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A HOPPER DEVICE HAVING A TRUSSED CHASSIS COMPRISING (A) A PAIR OF ELONGATED LATERALLY SPACED LOWER CHASSIS MEMBERS, (B) A PLURALITY OF TRANSVERSE CHASSIS MEMBERS CONNECTING SAID LOWER MEMBERS, (C) A PAIR OF SPACED UPPER CHASSIS MEMBERS VERTICALLY SPACED ABOVE SAID LOWER MEMBERS, (D) A PLURALITY OF MEMBERS FORMING A TRUSS BETWEEN SAID UPPER AND LOWER MEMBERS, AND
Claim 2
Dependent Claim
58 words
A HOPPER DEVICE HAVING A TRUSSED CHASSIS COMPRISING (A) A PAIR OF ELONGATED LATERALLY SPACED LOWER CHASSIS MEMBERS, (B) A PLURALITY OF TRANSVERSE CHASSIS MEMBERS CONNECTING SAID LOWER MEMBERS, (C) A PAIR OF SPACED UPPER CHASSIS MEMBERS VERTICALLY SPACED ABOVE SAID LOWER MEMBERS, (D) A PLURALITY OF MEMBERS FORMING A TRUSS BETWEEN SAID UPPER AND LOWER MEMBERS, AND
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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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |