US3203719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simplified construction for door latch operating mechanism
Assignee: Individual
•
Filing: 1962-10-22
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Granted: 1965-08-31
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Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 Francis J Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:08
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/16; E05C1/163; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0974
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A SPRING DOOR LATCH MECHANISM COMPRISING A MOVABLE LATCH ELEMENT ADAPTED TO BE MOUNTED ON A DOOR, SPRING MEANS NORMALLY MAINTAINED SAID MOVABLE LATCH ELEMENT IN EXTENDED LATCHING POSITION, AN ELONGATED HOLLOW ROTATABLE MEMBER ADAPTED TO BE MOUNTED ON A DOOR AND HAVING A LONGITUDINALLY DISPOSED ASSEMBLY SLOT EXTENDING FROM ONE END THEREOF AT LEAST INTO THE DOOR SURROUNDED PORTION THEREOF, MEANS ADAPTED TO BE MOUNTED ON SAID DOOR FOR JOURNALING SAID ROTATABLE MEMBER FOR STABILIZED ROTATION ON A FIXED AXIS, AND ARM-MOUNTING MEMBER SLIDABLY RECEIVED WITHIN THE HOLLOW PORTION OF SAID ROTATABLE MEMBER TO PERMIT ASSEMBLY IN INTERFITTED RELATION OF THE MOUNTING AND ROTATABLE MEMBERS, AND ARM FIXED TO SAID ARM-MOUNTING MEMBER FOR OSCILLATION BY SAID ROTATABLE MEMBER, MEANS CONNECTED SAID ARM TO SAID MOVABLE LATCH ELEMENT TO RETRACT THE SAME AGAINST SAID SPRING WHEN SAID ROTATABLE MEMBER IS ROTATED, AND HANDLE MEANS CONNECTED WITH SAID ROTATABLE MEMBER FOR FACILITATING ROTATION THEREOF.
Claim 2
Dependent Claim
153 words
A SPRING DOOR LATCH MECHANISM COMPRISING A MOVABLE LATCH ELEMENT ADAPTED TO BE MOUNTED ON A DOOR, SPRING MEANS NORMALLY MAINTAINED SAID MOVABLE LATCH ELEMENT IN EXTENDED LATCHING POSITION, AN ELONGATED HOLLOW ROTATABLE MEMBER ADAPTED TO BE MOUNTED ON A DOOR AND HAVING A LONGITUDINALLY DISPOSED ASSEMBLY SLOT EXTENDING FROM ONE END THEREOF AT LEAST INTO THE DOOR SURROUNDED PORTION THEREOF, MEANS ADAPTED TO BE MOUNTED ON SAID DOOR FOR JOURNALING SAID ROTATABLE MEMBER FOR STABILIZED ROTATION ON A FIXED AXIS, AND ARM-MOUNTING MEMBER SLIDABLY RECEIVED WITHIN THE HOLLOW PORTION OF SAID ROTATABLE MEMBER TO PERMIT ASSEMBLY IN INTERFITTED RELATION OF THE MOUNTING AND ROTATABLE MEMBERS, AND ARM FIXED TO SAID ARM-MOUNTING MEMBER FOR OSCILLATION BY SAID ROTATABLE MEMBER, MEANS CONNECTED SAID ARM TO SAID MOVABLE LATCH ELEMENT TO RETRACT THE SAME AGAINST SAID SPRING WHEN SAID ROTATABLE MEMBER IS ROTATED, AND HANDLE MEANS CONNECTED WITH SAID ROTATABLE MEMBER FOR FACILITATING ROTATION THEREOF.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |