Patent US3204996A successfully refreshed from Google Patents.
US3204996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch mechanism
Assignee: National Manufacturing Co
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Filing: 1963-02-20
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Granted: 1965-09-07
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Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Charles A Behrens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:49
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/24; E05B63/244; Y; Y10; Y10T; Y10T292/00; Y10T292/68; Y10T292/696
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A DOOR LATCH STRIKE COMPRISING A HOLLOW CASING HAVING A BASE FLANGE, END WALLS AND GENERALLY PARALLEL SIDE WALLS UPSTANDING FROM SAID BASE FLANGE AND A TOP WALL JOINING SAID SIDE WALLS AT THEIR TOPS, SAID END, SIDE AND TOP WALLS DEFINING A RECESS OPEN AT ITS BOTTOM, SAID TOP WALL BEING FORMED WITH AN OPENING TERMINATING SHORT OF ITS ENDS AND SAID SIDE WALLS BEING NOTCHED ADJACENT SAID TOP WALL OPENING, A STRIKE BAR FLOATINGLY SLIDABLE IN SAID RECESS BETWEEN A POSITION AGAINST SAID TOP WALL WHEREIN AT LEAST A PORTION OF SAID BAR IS EXPOSED AND A POSITION DISPLACED THEREFROM IN THE DIRECTION OF SAID BASE FLANGE, AND MEANS YIELDABLY URGING SAID BAR INTO POSITION AGAINST SAID TOP WALL, SAID STRIKE BAR HAVING A CORRESPONDING DIMENSION SUBSTANTIALLY EQUAL TO THE WIDTH OF SAID RECESS AND A TRANSVERSE DIMENSION WHICH IS SUBSTANTIALLY GREATER IN THE DIREC-
Claim 2
Dependent Claim
147 words
A DOOR LATCH STRIKE COMPRISING A HOLLOW CASING HAVING A BASE FLANGE, END WALLS AND GENERALLY PARALLEL SIDE WALLS UPSTANDING FROM SAID BASE FLANGE AND A TOP WALL JOINING SAID SIDE WALLS AT THEIR TOPS, SAID END, SIDE AND TOP WALLS DEFINING A RECESS OPEN AT ITS BOTTOM, SAID TOP WALL BEING FORMED WITH AN OPENING TERMINATING SHORT OF ITS ENDS AND SAID SIDE WALLS BEING NOTCHED ADJACENT SAID TOP WALL OPENING, A STRIKE BAR FLOATINGLY SLIDABLE IN SAID RECESS BETWEEN A POSITION AGAINST SAID TOP WALL WHEREIN AT LEAST A PORTION OF SAID BAR IS EXPOSED AND A POSITION DISPLACED THEREFROM IN THE DIRECTION OF SAID BASE FLANGE, AND MEANS YIELDABLY URGING SAID BAR INTO POSITION AGAINST SAID TOP WALL, SAID STRIKE BAR HAVING A CORRESPONDING DIMENSION SUBSTANTIALLY EQUAL TO THE WIDTH OF SAID RECESS AND A TRANSVERSE DIMENSION WHICH IS SUBSTANTIALLY GREATER IN THE DIREC-
References Cited (Backward Citations)
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Cited
US2178919A
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US2583391A
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US2790668A
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US2949328A
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US2956829A
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |