US3350146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad car truck side bearing and bolster retainer
Assignee: Standard Car Truck Co
•
Filing: 1964-12-11
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Granted: 1967-10-31
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Expires: 1984-12-11
Abstract
No abstract record available.
Inventors
- 👤 Ray C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A TRUCK AND CAR BOLSTER COMBINATION FOR RAILROAD CARS, INCLUDING A SIDE BEARING, LOOSELY SOCKETED BETWEEN THE BOLSTERS INCLUDING A PAD HAVING A TRUNCATED CYLINDRICAL FACE ON THE ONE SIDE THEREOF AND A PLANE ANTI-FRICTION FACE ON THE OTHER SIDE THEREOF, A TRUNCATED CYLINDRICAL SOCKET ON ONE OF THE BOLSTERS ADAPTED TO RECEIVE AND BE PENETRATED BY THE CYLINDRICAL FACE ON THE PAD, A SIDE BEARING BRACKET ON THE OTHER BOLSTER, ADAPTED TO ENGAGE THE PLANE ANTI-
Claim 2
Dependent Claim
77 words
A TRUCK AND CAR BOLSTER COMBINATION FOR RAILROAD CARS, INCLUDING A SIDE BEARING, LOOSELY SOCKETED BETWEEN THE BOLSTERS INCLUDING A PAD HAVING A TRUNCATED CYLINDRICAL FACE ON THE ONE SIDE THEREOF AND A PLANE ANTI-FRICTION FACE ON THE OTHER SIDE THEREOF, A TRUNCATED CYLINDRICAL SOCKET ON ONE OF THE BOLSTERS ADAPTED TO RECEIVE AND BE PENETRATED BY THE CYLINDRICAL FACE ON THE PAD, A SIDE BEARING BRACKET ON THE OTHER BOLSTER, ADAPTED TO ENGAGE THE PLANE ANTI-
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |