Patent US3255948A successfully refreshed from Google Patents.
US3255948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Severance line construction for cartons and the like
Assignee: Fort James Corp
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Filing: 1964-11-16
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Granted: 1966-06-14
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Kenneth T Buttery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:17
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/54; B65D5/5405; B65D5/542; B26; B26F; B26F1/00; B26F1/18; B26F1/38; B26F1/44; B26F1/40; Y; Y10; Y10T; Y10T428/00; Y10T428/15; Y10T83/00; Y10T83/02; Y10T83/0207; Y10T83/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PAPERBOARD PANEL HAVING A SEVERANCE LINE PROVIDED THEREIN COMPRISING A PLURALITY OF ELONGATED, SPACED-APART, ALIGNED PRIMARY CUTS PASSING SUBSTANTIALLY THROUGH THE ENTIRE THICKNESS OF SAID PAPERBOARD PANEL AND A SINGLE CONTINUOUS SECONDARY CUT SCORE EXTENDING ONLY PARTIALLY THROUGH SAID PAPERBOARD AND POSITIONED LATERALLY IMMEDIATELY ADJACENT TO SAID PRIMARY CUTS, SAID PRIMARY CUTS COMMUNICATING WITH SAID SECONDARY CUT SCORE.
Claim 2
Dependent Claim
59 words
A PAPERBOARD PANEL HAVING A SEVERANCE LINE PROVIDED THEREIN COMPRISING A PLURALITY OF ELONGATED, SPACED-APART, ALIGNED PRIMARY CUTS PASSING SUBSTANTIALLY THROUGH THE ENTIRE THICKNESS OF SAID PAPERBOARD PANEL AND A SINGLE CONTINUOUS SECONDARY CUT SCORE EXTENDING ONLY PARTIALLY THROUGH SAID PAPERBOARD AND POSITIONED LATERALLY IMMEDIATELY ADJACENT TO SAID PRIMARY CUTS, SAID PRIMARY CUTS COMMUNICATING WITH SAID SECONDARY CUT SCORE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |