Patent US3207412A successfully refreshed from Google Patents.
US3207412A
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Bottom unloading container assembly and method for unloading containers
Assignee: CORROBILT CONTAINER CO
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Filing: 1962-01-02
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Granted: 1965-09-21
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Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 William H Bronte
- 👤 Stanley E Lingenfelter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:07
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/02; B65D19/06; B65D19/20; B65D5/00; B65D5/42; B65D5/72; B65D5/726; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00019; B65D2519/00154; B65D2519/00159; B65D2519/00189; B65D2519/00194; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00333; B65D2519/00492; B65D2519/00497; B65D2519/00547; B65D2519/00577; B65D2519/00582; B65D2519/00587; B65D2519/00592; B65D2519/00597; B65D2519/00636; B65D2519/00641; B65D2519/00706; B65D2519/00716; B65D2519/00721; B65D2519/00726; B65D2519/00736; B65D2519/00805; B65D2519/00865; B65D2519/00875; B65D2519/0091; B65D2519/0098; B65D2519/0099
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
148 words
A PREFORMED PIECE OF MATERIAL FOR ASSEMBLY INTO A BOTTOM UNLOADING BOX COMPRISING A THIN GENERALLY RECTANGULAR PLANAR PORTION, SAID PORTION BEING SCORED ALONG THREE PARALLEL LINES TO DIVIDE SAID PORTION INTO FOUR RECTANGULAR SIDE SECTIONS, AND FOUR SUBSTANTIALLY IDENTICAL END FLAP PORTIONS EACH EXTENDING RESPECTIVELY FROM CORRESPONDING ENDS OF SAID FOUR SIDE SECTIONS, SAID FLAP PORTIONS EACH BEING SCORED ALONG A LINE CONTIGUOUS WITH SAID ENDS OF SAID SIDE SECTIONS TO FORM A HINGE LINE, EACH OF SAID FLAP PORTIONS HAVING A PAIR OF PARALLEL SPACED SLITS EXTENDING INWARDLY FROM THE END EDGES OF SAID FLAP PORTIONS TOWARD THE RESPECTIVE SIDE SECTIONS OF AND BEING EQUIDISTANTLY SPACED FROM THE SIDE EDGES OF SAID END FLAPS, SAID SLITS HAVING THEIR INNER ENDS EQUIDISTANTLY SPACED FROM SAID HINGE LINES, SAID END FLAP PORTIONS EACH BEING SCORED ALONG A LINE BETWEEN THE CORRESPONDING INNER ENDS OF SAID PAIRS OF SLITS.
References Cited (Backward Citations)
US1443279A
Cited
US1712249A
Cited
US2053217A
Cited
US2341397A
Cited
US2326527A
Cited
US2360415A
Cited
US2727641A
Cited
US2753062A
Cited
US2930560A
Cited
US2904297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |