Patent US3525455A successfully refreshed from Google Patents.
US3525455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet metal container
Assignee: National Steel Corp
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Filing: 1964-08-05
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Granted: 1970-08-25
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Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 William T Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:56
CPC Classifications
B; B65; B65D; B65D7/00; B65D7/12; B65D7/34; B65D7/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
230 words
A SHEET METAL CONTAINER COMPRISING A BODY MEMBER AND AN END COVER JOINED TO AN END OF THE BODY MEMBER FOR CLOSING AND SEALING THE CONTAINER, THE END COVER INCLUDING A CENTRAL PORTION DISPOSED INWARDLY FROM THE END OF THE CONTAINER AT ITS CLOSED END, THE BODY MEMBER HAVING AN INSIDE SURFACE EXTENDING ABOUNT AN AXIS OF THE CONTAINER WITH THE INSIDE SURFACE INCLUDING A PORTION BETWEEN THE PLANE OF THE CENTRAL PORTION OF THE END COVER AND THE PLANE OF THE CLOSE END OF THE CONTAINER PARALLEL TO SAID AXIS, THE END COVER HAVING ITS CENTRAL PORTION SURROUNDED BY A WALL PORTION AND AN OUTER PORTION SECURED TO THE END OF THE BODY MEMBER BY A DOUBLE SEAM WHICH PROJECTS RADIALLY FROM THE OUTSIDE SURFACE OF THE BODY MEMBER, THE WALL PORTION OF THE END COVER BEING RECEIVED WITHIN THE BODY MEMBER IN CONTACT WITH THE PARALLEL PORTION OF THE INSIDE SURFACE OF THE BODY MEMBER, THE END COVER BEING FORMED OF SHEET METAL MATERIAL OF UNIFORM THICKNESS, THE WALL PORTION OF THE END COVER COMPRISING AT LEAST THREE OVERLAPPING FOLDS OF SAID SHEET METAL MATERIAL WITH ADJACENT SURFACES OF THE FOLDS IN MUTUAL CONTACT, AND THE OVERLAPPING FOLDS OF THE WALL PORTION EXTENDING THROUGHOUT A MAJOR PART OF THE PARALLEL PORTION OF THE INSIDE SURFACE OF THE BODY MEMBER WITH ONE OF THE FOLDS IN OVERLYING CONTACT THEREWITH.
Claim 2
Dependent Claim
230 words
A SHEET METAL CONTAINER COMPRISING A BODY MEMBER AND AN END COVER JOINED TO AN END OF THE BODY MEMBER FOR CLOSING AND SEALING THE CONTAINER, THE END COVER INCLUDING A CENTRAL PORTION DISPOSED INWARDLY FROM THE END OF THE CONTAINER AT ITS CLOSED END, THE BODY MEMBER HAVING AN INSIDE SURFACE EXTENDING ABOUNT AN AXIS OF THE CONTAINER WITH THE INSIDE SURFACE INCLUDING A PORTION BETWEEN THE PLANE OF THE CENTRAL PORTION OF THE END COVER AND THE PLANE OF THE CLOSE END OF THE CONTAINER PARALLEL TO SAID AXIS, THE END COVER HAVING ITS CENTRAL PORTION SURROUNDED BY A WALL PORTION AND AN OUTER PORTION SECURED TO THE END OF THE BODY MEMBER BY A DOUBLE SEAM WHICH PROJECTS RADIALLY FROM THE OUTSIDE SURFACE OF THE BODY MEMBER, THE WALL PORTION OF THE END COVER BEING RECEIVED WITHIN THE BODY MEMBER IN CONTACT WITH THE PARALLEL PORTION OF THE INSIDE SURFACE OF THE BODY MEMBER, THE END COVER BEING FORMED OF SHEET METAL MATERIAL OF UNIFORM THICKNESS, THE WALL PORTION OF THE END COVER COMPRISING AT LEAST THREE OVERLAPPING FOLDS OF SAID SHEET METAL MATERIAL WITH ADJACENT SURFACES OF THE FOLDS IN MUTUAL CONTACT, AND THE OVERLAPPING FOLDS OF THE WALL PORTION EXTENDING THROUGHOUT A MAJOR PART OF THE PARALLEL PORTION OF THE INSIDE SURFACE OF THE BODY MEMBER WITH ONE OF THE FOLDS IN OVERLYING CONTACT THEREWITH.
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) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |