Patent US3081104A successfully refreshed from Google Patents.
US3081104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank vehicle of the semitrailer type
Assignee: DOORNE S AAHANGWAGENFABRIEK N
•
Filing: 1960-05-02
•
Granted: 1963-03-12
•
Expires: 1980-05-02
Abstract
No abstract record available.
Inventors
- 👤 Franciscus X A Schmiermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:42
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/22; B60P3/2205
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
A SEMI-TRAILER TANK VEHICLE, COMPRISING A TANK HAVING A COUPLING DEVICE NEAR ITS FRONT END, A SET OF ROAD WHEELS SUPPORTING ITS REAR END, SAID TANK HAVING A SUBSTANTIALLY UNIFORM CIRCUMFERENCE THROUGHOUT ITS LENGTH AND HAVING ADJACENT SAID COUPLING DEVICE AN ELLIPTICAL FORM WITH ITS MAJOR AXIS HORIZONTAL AND AT ITS REAR END AN ELLIPTICAL FORM WITH ITS MAJOR AXIS VERTICAL, SAID TANK HAVING A TUBULAR BODY CLOSED AT ITS ENDS BY A FRONT WALL AND A REAR WALL, SAID COUPLING DEVICE BEING FIXED TO SAID TANK BODY BELOW ITS FRONT END, THE UPPER SURFACE OF SAID TANK BEING SUBSTANTIALLY HORIZONTAL IN DRIVING POSITION AND THE LOWER SURFACE SLOPING FROM A POINT ABOVE SAID COUPLING TO A POINT BELOW A HORIZONTAL PLANE PASSING THROUGH THE TOP OF SAID ROAD WHEELS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |