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US3118587A Expired / Lapsed US ⏱️ 0.0 years remaining

High strength paperboard containers

Assignee: West Virginia Pulp and Paper Co
•
Filing: 1958-05-09
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Granted: 1964-01-21
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Expires: 1978-05-09
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Abstract

No abstract record available.

Inventors

  • 👤 Charles D Welshenbach

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 06:21
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/64; B65D5/68; B65D5/02; B65D5/0281

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 253 words
A PAPERBOARD CONTAINER COMPRISING TWO TELESCOPED RECTANGULAR UNITS EACH HAVING A CLOSED END AND AN OPEN END, THE CLOSED ENDS OF THE UNITS BEING AT OPPOSITE ENDS OF THE CONTAINER, EACH UNIT COMPRISING THE FOLLOWING: FOUR RECTANGULARLY DISPOSED SIDE WALLS, AN END WALL AT THE CLOSED END OF THE UNIT, A PAIR OF THE SIDE WALLS BEING DOUBLE PLY AND THE REMAINING PAIR OF THE SIDE WALLS BEING SINGLE PLY, EACH MEMBER OF EACH OF THE PAIRS OF BEING ADJACENT TO THE OTHER MEMBER OF ITS PAIR, ONE PLY OF EACH SIDE WALL BEING HINGED TO AND INTEGRAL WITH ONE PLY OF AT LEAST ONE ADJACENT SIDE WALL, WITH SINGLE PLIES OF TWO ADJACENT SIDE WALLS EACH BEING HINGED TO AND INTEGRAL WITH THE OTHER AND EACH ALSO BEING HINGED TO AND INTEGRAL WITH ANOTHER PLY OF ANOTHER OF THE SIDE WALLS, SAID ANOTHER PLY AND ANOTHER SIDE WALL BEING DIFFERENT FOR EACH OF SAID SINGLE PLIES, THE END WALL BEING DOUBLE PLY, THE PLIES OF THE END WALL EACH BEING HINGED TO AND INTEGRAL WITH ONE PLY ON EACH OF A TWOSOME OF OPPOSITE SIDE WALLS, THE TWOSOME OF OPPOSITE SIDE WALLS WITH WHICH ONE OF THE END WALL PLIES IS SO HINGEDLY AND INTEGRALLY ASSOCIATED COMPRISING DIFFERENT SIDE WALLS THAN THE TWOSOME OF OPPOSITE SIDE WALLS WITH WHICH THE OTHER OF THE END WALL PLIES IS SO HINGEDLY AND INTEGRALLY ASSOCIATED, EACH OF SAID TWOSOMES OF OPPOSITE SIDE WALLS COMPRISING A SINGLE PLY SIDE WALL AND A DOUBLE PLY SIDE WALL.

References Cited (Backward Citations)

US930114A Cited
US1367378A Cited
USRE21287E Cited
DE642997C Cited
US2037428A Cited
US2540595A Cited
US2702662A Cited
US2759651A Cited
US2761610A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-01-20 1967-07-22 1968-01-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-01-20 1971-07-22 1972-01-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-01-20 1975-07-22 1976-01-21 $7700.00 Window Closed / Lapsed

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