Patent US3979793A successfully refreshed from Google Patents.
Patent US3409562A successfully refreshed from Google Patents.
US3208809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1963-11-12
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Granted: 1965-09-28
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Anthony A Quimper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:44
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/02; F25D23/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
THE COMBINATION WITH AN OPEN TOP CABINET, OF A FRONT LID AND A REAR LID EACH OF RECTANGULAR OUTLINE AND ADAPTED FOR SLIDING FORWARDLY AND REARWARDLY, THE CABINET HAVING A PAIR OF PARALLEL SUPPORTING OR GLIDING SURFACES EXXTENDING FROM FRONT TO REAR FOR SUPPORTING SAID LIDS FOR SLIDING FORWARDLY AND REARWARDLY, EACH LID BEING PROVIDED WITH HANDLE MEANS ON TOPE ADJACENT THE FRONT EDGE, THEE FRONT AND REAR LIDS HAVING COOPEKRATING PORTIONS, ONE OF WHICH HAS A SURFACE INCLINED UPWADLYY ANND FORWARDLY, WHEREBY WHEN THE FRONT LID AND SLIDES THEREUNDER, WARDLY, IT RAISES THE REAR LID AND SLIDES THEREUNDER, THE REAR LID AND THE CABINET HAVING COOPERATING INTERLOCKING ELEMENTS DISPOSED ADJACENT THE REAR EDGE OF THE RREAR LID IN ITS CLOSED POSITION, SAIDI INTERLOCKING ELEMENTS BEING SO ARRANGED THAT THEY ARE BROUGHT INTO INTERLOCKING RELATION AND PREVENT FORWARD MOVEMENT OF THE REAR LID WHEN THE REAR LID IS IN ITS REARMOST POSITION AND IS RAISED BY THE FRONT LID DISPOSED UNDER THE SAME AND ARE OUT OF INTERLOCKING RELATION TO PERMIT UNRESTRICTED FORWARD MOVEMENNT OF THE REAR LID WHEN THE REAR EDGE THEREOF IS RESTING ONN SAID SUPPORTING SURFACES.
Claim 2
Dependent Claim
189 words
THE COMBINATION WITH AN OPEN TOP CABINET, OF A FRONT LID AND A REAR LID EACH OF RECTANGULAR OUTLINE AND ADAPTED FOR SLIDING FORWARDLY AND REARWARDLY, THE CABINET HAVING A PAIR OF PARALLEL SUPPORTING OR GLIDING SURFACES EXXTENDING FROM FRONT TO REAR FOR SUPPORTING SAID LIDS FOR SLIDING FORWARDLY AND REARWARDLY, EACH LID BEING PROVIDED WITH HANDLE MEANS ON TOPE ADJACENT THE FRONT EDGE, THEE FRONT AND REAR LIDS HAVING COOPEKRATING PORTIONS, ONE OF WHICH HAS A SURFACE INCLINED UPWADLYY ANND FORWARDLY, WHEREBY WHEN THE FRONT LID AND SLIDES THEREUNDER, WARDLY, IT RAISES THE REAR LID AND SLIDES THEREUNDER, THE REAR LID AND THE CABINET HAVING COOPERATING INTERLOCKING ELEMENTS DISPOSED ADJACENT THE REAR EDGE OF THE RREAR LID IN ITS CLOSED POSITION, SAIDI INTERLOCKING ELEMENTS BEING SO ARRANGED THAT THEY ARE BROUGHT INTO INTERLOCKING RELATION AND PREVENT FORWARD MOVEMENT OF THE REAR LID WHEN THE REAR LID IS IN ITS REARMOST POSITION AND IS RAISED BY THE FRONT LID DISPOSED UNDER THE SAME AND ARE OUT OF INTERLOCKING RELATION TO PERMIT UNRESTRICTED FORWARD MOVEMENNT OF THE REAR LID WHEN THE REAR EDGE THEREOF IS RESTING ONN SAID SUPPORTING SURFACES.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |