Patent US3273728A successfully refreshed from Google Patents.
US3273728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kelso rear unloading box
Assignee: RELIANCE HOLDINGS Inc
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Filing: —
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Granted: 1966-09-20
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:03
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
AN UNLOADING BOX COMPRISING A BOTTOM PANEL, A PAIR OF SIDE WALL PANELS SPACED APART AND ATTACHED TO SAID BOTTOM PANEL AT OPPOSITE SIDES THEREOF, A REAR OPENING IN SAID BOX, A PLATEN SLIDABLY MOUNTED IN SAID BOX FOR MOVEMENT FROM THE FRONT TO THE REAR THEREOF, SAID PLATEN INCLUDING A PAIR OF SIDE WING MEMBERS HINGEDLY ATTACHED THERETO AND EXTENDING OUTWARDLY AND REARWARDLY THEREFROM, SAID SIDE WING MEMBERS BEING ADAPTED TO ENGAGE THE SIDE PANELS OF SAID BOX AND SCRAPE THE SIDES OF SAID BOX AS SAID PLATEN MOVES FROM THE FRONT TO THE REAR THEREOF, AND A PLURALITY OF INDIVIDUAL BOTTOM PANEL SCRAPER MEMBERS HINGEDLY ATTACHED ADJACET THE LOWER PORTION OF SAID PLATEN AND ADAPTED TO ENGAGE THE BOTTOM OF SAID BOX AS SAID PLATEN IS MOVED FROM THE FRONT TO THE REAR.
Claim 2
Dependent Claim
135 words
AN UNLOADING BOX COMPRISING A BOTTOM PANEL, A PAIR OF SIDE WALL PANELS SPACED APART AND ATTACHED TO SAID BOTTOM PANEL AT OPPOSITE SIDES THEREOF, A REAR OPENING IN SAID BOX, A PLATEN SLIDABLY MOUNTED IN SAID BOX FOR MOVEMENT FROM THE FRONT TO THE REAR THEREOF, SAID PLATEN INCLUDING A PAIR OF SIDE WING MEMBERS HINGEDLY ATTACHED THERETO AND EXTENDING OUTWARDLY AND REARWARDLY THEREFROM, SAID SIDE WING MEMBERS BEING ADAPTED TO ENGAGE THE SIDE PANELS OF SAID BOX AND SCRAPE THE SIDES OF SAID BOX AS SAID PLATEN MOVES FROM THE FRONT TO THE REAR THEREOF, AND A PLURALITY OF INDIVIDUAL BOTTOM PANEL SCRAPER MEMBERS HINGEDLY ATTACHED ADJACET THE LOWER PORTION OF SAID PLATEN AND ADAPTED TO ENGAGE THE BOTTOM OF SAID BOX AS SAID PLATEN IS MOVED FROM THE FRONT TO THE REAR.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |