US3113743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable core tip
Assignee: Macmillan Bloedel and Powell River Ltd
•
Filing: 1959-03-10
•
Granted: 1963-12-10
•
Expires: 1979-03-10
Abstract
No abstract record available.
Inventors
- 👤 Alexander L Hay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:30
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/185; B65H75/187; B65H75/30; B65H2402/00; B65H2402/40; B65H2402/41; B65H2402/414; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10S; Y10S242/00; Y10S242/916
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A REMOVABLE TIP FOR CYLINDRICAL CORES SUCH AS USED IN NEWSPRINT ROLLS, COMPRISING A SINGLE UNBROKEN DIAMETRICALLY RIGID TUBULAR SLEEVE OF A SIZE TO FIT SNUGLY INTO THE END OF A CORE AND HAVING INNER AND OUTER ENDS, AN END WALL COMPLETELY ACROSS AND CONNECTED TO THE INNER END OF THE SLEEVE TO BRACE THE LATTER AGAINST ANY RADIAL CRUSHING ACTION TO WHICH THE SLEEVE MAY BE SUBJECTED, MEANS CONNECTED TO THE OUTER END OF THE SLEEVE TO ENGAGE THE ADJACENT END OF A CORE TO LIMIT THE MOVEMENT OF THE SLEEVE THEREINTO, AND AT LEAST ONE KEYWAY PRESSED OUTWARDLY OF THE SLEEVE EXTENDING LONGITUDINALLY THEREOF AND OPENING OUT FROM THE SLEEVE OUTER END, SAID KEYWAY LONGITUDINALLY OPENING INTO THE SLEEVE AND BULGING OUTWARDLY FROM THE OUTER SURFACE THEREOF TO FIT INTO A SLOT IN THE CORE END IN WHICH THE SLEEVE IS FITTED.
Claim 2
Dependent Claim
144 words
A REMOVABLE TIP FOR CYLINDRICAL CORES SUCH AS USED IN NEWSPRINT ROLLS, COMPRISING A SINGLE UNBROKEN DIAMETRICALLY RIGID TUBULAR SLEEVE OF A SIZE TO FIT SNUGLY INTO THE END OF A CORE AND HAVING INNER AND OUTER ENDS, AN END WALL COMPLETELY ACROSS AND CONNECTED TO THE INNER END OF THE SLEEVE TO BRACE THE LATTER AGAINST ANY RADIAL CRUSHING ACTION TO WHICH THE SLEEVE MAY BE SUBJECTED, MEANS CONNECTED TO THE OUTER END OF THE SLEEVE TO ENGAGE THE ADJACENT END OF A CORE TO LIMIT THE MOVEMENT OF THE SLEEVE THEREINTO, AND AT LEAST ONE KEYWAY PRESSED OUTWARDLY OF THE SLEEVE EXTENDING LONGITUDINALLY THEREOF AND OPENING OUT FROM THE SLEEVE OUTER END, SAID KEYWAY LONGITUDINALLY OPENING INTO THE SLEEVE AND BULGING OUTWARDLY FROM THE OUTER SURFACE THEREOF TO FIT INTO A SLOT IN THE CORE END IN WHICH THE SLEEVE IS FITTED.
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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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |