Patent US3562955A successfully refreshed from Google Patents.
US3562955A
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US
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Hinged closure assembly
Assignee: 3M Co
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Filing: 1969-05-01
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Granted: 1971-02-16
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Expires: 1989-05-01
Abstract
Abstract A HINGED CLOSURE ASSEMBLY IN WHICH A DOOR IS FORMED WITH A BODY PORTION EXTENDING ALONG ONE FACE OF A WALL PANEL AND COVERING AN OPENING THEREIN, A LINKING SEGMENT EXTENDING THROUGH THE WALL OPENING, AND A RETAINING SEGMENT EXTENDING ALONG THE OPPOSED FACE OF THE WALL PANEL TO BOTH SIDES OF THE OPENING TO COOPERATE WITH DIMPLES PROTRUDING FROM THE OPPOSED FACE OF THE WALL PANEL TO RETAIN THE LINKING SEGMENT OF THE DOOR IN POSITION ON THE WALL PANEL AS THE DOOR IS OPENED TO EXPOSE THE WALL OPENING.
Inventors
- 👤 Jack P Blomgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:48
CPC Classifications
E; E05; E05D; E05D1/00; E05D1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |