US3277842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad tank car
Assignee: Union Tank Car Co
•
Filing: 1962-08-24
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Granted: 1966-10-11
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Expires: 1982-08-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick W Schwartz
- 👤 Robert F Seitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:55
CPC Classifications
B; B61; B61D; B61D5/00; B61D5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A LARGE VOLUME RAILROAD TANK CAR COMPRISING MAIN CONTAINER MEANS HAVING A WALL PORTION WHICH WHEN VIEWED IN A VERTICAL PLANE HAS THE CONFIGURATION OF TWO UNIFORM RADIUS CIRCLES INTERSECTING IN A HORIZONTAL PLANE TO DEFINE SUBSTANTIALLY INDENTICAL ARCS, EACH ARE BEING GREATER THAN A SEMI-CIRCLE, AND MEANS IN SAID PLANE CONNECTING SAID CIRCLES AT THEIR POINTS OF INTERSECTION WHEREBY SAID CONTAINER MEANS HAS A VOLUME GREATER THAN THAT OF A CYLINDER OF EQUAL LENGTH AND HAVING A RADIUS THE SAME AS THAT OF SAID CIRCLES.
Claim 2
Dependent Claim
86 words
A LARGE VOLUME RAILROAD TANK CAR COMPRISING MAIN CONTAINER MEANS HAVING A WALL PORTION WHICH WHEN VIEWED IN A VERTICAL PLANE HAS THE CONFIGURATION OF TWO UNIFORM RADIUS CIRCLES INTERSECTING IN A HORIZONTAL PLANE TO DEFINE SUBSTANTIALLY INDENTICAL ARCS, EACH ARE BEING GREATER THAN A SEMI-CIRCLE, AND MEANS IN SAID PLANE CONNECTING SAID CIRCLES AT THEIR POINTS OF INTERSECTION WHEREBY SAID CONTAINER MEANS HAS A VOLUME GREATER THAN THAT OF A CYLINDER OF EQUAL LENGTH AND HAVING A RADIUS THE SAME AS THAT OF SAID CIRCLES.
References Cited (Backward Citations)
US814880A
Cited
US2162227A
Cited
US2408105A
Cited
US2672254A
Cited
US3139841A
Cited
US3139842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |