Patent US4162384A successfully refreshed from Google Patents.
Patent US3073218A successfully refreshed from Google Patents.
US3073218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making convolute paper tubes and method
Assignee: Star Paper Tube Inc
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Filing: 1962-05-15
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Granted: 1963-01-15
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Expires: 1982-05-15
Abstract
No abstract record available.
Inventors
- 👤 Charles L Roediger
- 👤 Bailey T Groome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:07
CPC Classifications
B; B31; B31C; B31C1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A METHOD OF STRIPPING ELONGATE CONVOLUTE TUBES FORWARDLY OFF THE FREE END OF A MANDREL WHOSE REAR END IS JOURNALED AND ABOUT WHICH EACH SUCCESSIVE TUBE IS WOUND WHICH COMPRISES THE STEPS OF (A) ENGAGING AND APPLYING A PUSHING FORCE AGAINST THE REAR END OF THE TUBE AND LONGITUDINALLY OF THE MANDREL WHILE POSITIVELY SUPPORTING THE TUBE AND MANDREL AT AT LEAST ONE POINT ALONG A MEDIAL PORTION OF SAID TUBE AND SAID MANDREL TO MAINTAIN THE MANDREL SUBSTANTIALLY STRAIGHT, (B) WITHDRAWING SUPPORT FROM THE TUBE AS ITS REAR END APPROACHES SAID POINT OF SUPPORT, AND (C) POSITIVELY SUPPORTING A MEDIAL PORTION OF SAID MANDREL TO MAINTAIN THE MANDREL SUBSTANTIALLY STRAIGHT WHEN THE TRAILING END OF THE TUBE PASSES THEREBEYOND AND DURING THE REMAINDER OF THE PERIOD IN WHICH THE TUBE IS BEING PUSHED OFF THE FREE END OF THE MANDREL.
Claim 2
Independent Claim
141 words
A METHOD OF STRIPPING ELONGATE CONVOLUTE TUBES FORWARDLY OFF THE FREE END OF A MANDREL WHOSE REAR END IS JOURNALED AND ABOUT WHICH EACH SUCCESSIVE TUBE IS WOUND WHICH COMPRISES THE STEPS OF (A) ENGAGING AND APPLYING A PUSHING FORCE AGAINST THE REAR END OF THE TUBE AND LONGITUDINALLY OF THE MANDREL WHILE POSITIVELY SUPPORTING THE TUBE AND MANDREL AT AT LEAST ONE POINT ALONG A MEDIAL PORTION OF SAID TUBE AND SAID MANDREL TO MAINTAIN THE MANDREL SUBSTANTIALLY STRAIGHT, (B) WITHDRAWING SUPPORT FROM THE TUBE AS ITS REAR END APPROACHES SAID POINT OF SUPPORT, AND (C) POSITIVELY SUPPORTING A MEDIAL PORTION OF SAID MANDREL TO MAINTAIN THE MANDREL SUBSTANTIALLY STRAIGHT WHEN THE TRAILING END OF THE TUBE PASSES THEREBEYOND AND DURING THE REMAINDER OF THE PERIOD IN WHICH THE TUBE IS BEING PUSHED OFF THE FREE END OF THE MANDREL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |