Patent US3220683A successfully refreshed from Google Patents.
US3220683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner pads and blanks therefor
Assignee: Individual
•
Filing: 1964-08-17
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Granted: 1965-11-30
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Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Martin E Doll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:24
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/05; B65D81/053; B65D81/055; B65D81/056; B65D2581/00; B65D2581/02; B65D2581/05; B65D2581/051; B65D2581/052; B65D2581/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN ELONGATE PAPERBOARD BLANK FOLDABLE INTO A TRIHEDRAL CORNER PAD HAVING TRIANGULAR WALLS, SAID BLANK COMPRISING AT LEAST THREE RECTANGULAR PANELS SERIALLY ARRANGED AND RESPECTIVELY HINGEDLY CONNECTED ALONG FOLD LINES DEFINING THE ADJACENT SIDE EDGES THEREOF, SAID PANELS HAVING DIAGONAL FOLD LINES THEREIN COLLECTIVELY FORMING A SUBSTANTIALLY CONTINUOUS ZIG-ZAG LINE LENGTHWISE OF SAID BLANK, SAID DIAGONAL FOLD LINES DIVIDING THE PANELS INTO SUBSTANTIALLY RIGHT TRIANGULAR HALVES WHICH DEFINE THE WALLS OF THE CORNER PAD WHEN SAID BLANK IS FOLDED THEREINTO, AND THE SIDE EDGES OF AT LEAST TWO OF SAID PANELS HAVING CUTOUTS AND PROTUBERANCES THEREIN ADAPTED TO COOPERATIVELY MATE WITH EACH OTHER WHEN THE BLANK IS FOLDED INTO A TRIHEDRAL CORNER PAD TO LOCK THE BLANK IN FOLDED CONDITION.
Claim 2
Dependent Claim
120 words
AN ELONGATE PAPERBOARD BLANK FOLDABLE INTO A TRIHEDRAL CORNER PAD HAVING TRIANGULAR WALLS, SAID BLANK COMPRISING AT LEAST THREE RECTANGULAR PANELS SERIALLY ARRANGED AND RESPECTIVELY HINGEDLY CONNECTED ALONG FOLD LINES DEFINING THE ADJACENT SIDE EDGES THEREOF, SAID PANELS HAVING DIAGONAL FOLD LINES THEREIN COLLECTIVELY FORMING A SUBSTANTIALLY CONTINUOUS ZIG-ZAG LINE LENGTHWISE OF SAID BLANK, SAID DIAGONAL FOLD LINES DIVIDING THE PANELS INTO SUBSTANTIALLY RIGHT TRIANGULAR HALVES WHICH DEFINE THE WALLS OF THE CORNER PAD WHEN SAID BLANK IS FOLDED THEREINTO, AND THE SIDE EDGES OF AT LEAST TWO OF SAID PANELS HAVING CUTOUTS AND PROTUBERANCES THEREIN ADAPTED TO COOPERATIVELY MATE WITH EACH OTHER WHEN THE BLANK IS FOLDED INTO A TRIHEDRAL CORNER PAD TO LOCK THE BLANK IN FOLDED CONDITION.
References Cited (Backward Citations)
US2476197A
Cited
US2509468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |