US3144268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivotally mounted auxilliary door opening device
Assignee: Individual
•
Filing: 1961-04-24
•
Granted: 1964-08-11
•
Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Robert W Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:19
CPC Classifications
E; E05; E05B; E05B1/00; E05B1/0053; Y; Y10; Y10T; Y10T292/00; Y10T292/175; Y10T292/19; Y10T292/57; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213; Y10T74/2022; Y10T74/20576; Y10T74/20732; Y10T74/20738
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN AUXILIARY DOOR LATCH OPERATING MECHANISM FOR USE IN CONJUNCTION WITH A DOOR LATCH PIVOTALLY CONNECTED TO A DOOR FOR ROTATIVE MOVEMENT ABOUT A VERTICAL AXIS, THE DOOR LATCH HAVING A HANDLE EXTENDING LATERALLY FROM ITS AXIS OF ROTATION, THE MECHANISM INCLUDING AN ELONGATED ROD, MEANS MOUNTING SAID ROD TO SAID DOOR FOR ROTATION ABOUT A SECOND VERTICAL AXIS PARALLEL TO SAID FIRST AXIS, A HANDLE INTEGRAL WITH SAID ROD AND EXTENDING LATERALLY FROM THE LOWER END OF THE SAID ROD, AND DOOR HANDLE OPERATING MEANS ON THE OTHER END OF THE SAID ROD EXTENDING ANGULARLY FROM THE SAID ELONGATED ROD ABUTTINGLY ENGAGEABLE AND OPERABLE WITH SAID DOOR LATCH HANDLE.
Claim 2
Dependent Claim
110 words
AN AUXILIARY DOOR LATCH OPERATING MECHANISM FOR USE IN CONJUNCTION WITH A DOOR LATCH PIVOTALLY CONNECTED TO A DOOR FOR ROTATIVE MOVEMENT ABOUT A VERTICAL AXIS, THE DOOR LATCH HAVING A HANDLE EXTENDING LATERALLY FROM ITS AXIS OF ROTATION, THE MECHANISM INCLUDING AN ELONGATED ROD, MEANS MOUNTING SAID ROD TO SAID DOOR FOR ROTATION ABOUT A SECOND VERTICAL AXIS PARALLEL TO SAID FIRST AXIS, A HANDLE INTEGRAL WITH SAID ROD AND EXTENDING LATERALLY FROM THE LOWER END OF THE SAID ROD, AND DOOR HANDLE OPERATING MEANS ON THE OTHER END OF THE SAID ROD EXTENDING ANGULARLY FROM THE SAID ELONGATED ROD ABUTTINGLY ENGAGEABLE AND OPERABLE WITH SAID DOOR LATCH HANDLE.
References Cited (Backward Citations)
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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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |