Patent US3306233A successfully refreshed from Google Patents.
US3306233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car holder assembly
Assignee: Whiting Corp
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Filing: 1964-02-24
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Granted: 1967-02-28
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Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Wallace J Saxonmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:24
CPC Classifications
B; B61; B61K; B61K7/00; B61K7/16; B61K7/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
A RAILWAY CAR HOLDER ASSEMBLY OF THE TYPE ADAPTED TO BE MOUNTED BETWEEN RAILS OF TRACK FOR HOLDING ONE OR MORE CARS ON THE LATTER, SAID ASSEMBLY COMPRISING, A PAIR OF JUXTAPOSED CAR HOLDERS EXTENDING LONGITUDINALLY OF SAID RAILS BETWEEN THE SAME, EACH OF SAID CAR HOLDERS HAVING COLLAPSIBLE MEANS INCLUDING A MEMBER ADAPTED TO BE ENGAGED BY A RAILWAY CAR AXLE FOR ACTING AS STOP AGAINST MOVEMENT OF A CAR IN ONE DIRECTION THEREOF AND FOR PERMITTING MOVEMENT OF THE CAR IN AN OPPOSITE DIRECTION, SEPARATE TRACK MEANS MOUNTING EACH OF SAID CAR HOLDERS FOR MOVEMENT IN EITHER DIRECTION ALONG A RECTILINEAR PATH PARALLEL TO THE DIRECTION OF CAR MOVEMENT ALONG SAID RAILS, EQUALIZER BAR MEANS PIVOTALLY SECURED TO CORRESPONDING
References Cited (Backward Citations)
US1478676A
Cited
US2863399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |