US3077100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knob construction for cylinder locks
Assignee: Emhart Industries Inc
•
Filing: 1959-11-23
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Granted: 1963-02-12
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 John R Gerlach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:11
CPC Classifications
E; E05; E05B; E05B3/00; E05B3/003; Y; Y10; Y10T; Y10T292/00; Y10T292/82; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5757; Y10T70/5832; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7655
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN A KNOB CONSTRUCTION, THE COMBINATION OF: A HOLLOW KNOB BODY HAVING A FRONT FACE INCORPORATING A CYLINDER LOCK RECEIVING OPENING, SAID FRONT FACE HAVING DETENT MEANS THEREUPON; A CYLINDER LOCK HAVING A HOUSING INCORPORATING A CYLINDER PLUG AND HAVING A CYLINDER COVER SUPPORTED UPON THE FORWARD EXTREMITY THEREOF, SAID HOUSING BEING MOVABLE WITHIN SAID BODY AFTER INSERTION THROUGH SAID OPENING INTO A POSITION IN WHICH A PORTION THEREOF IS OUT OF REGISTRY WITH SAID OPENING TO RETAIN SAID HOUSING AGAINST DISPLACEMENT FROM SAID BODY, SAID CYLINDER COVER BEING ADAPTED TO COVER SAID OPENING IN SAID FRONT FACE, SAID COVER HAVING DETENT MEANS THEREUPON CORRESPONDING WITH SAID DETENT MEANS ON SAID FRONT FACE TO LOCATE SAID COVER WITH REFERENCE TO SAID FRONT FACE; AND A SPINDLE INSERTABLE IN SAID BODY HAVING RETENTION MEANS ADAPTED TO POSITIVELY PREVENT RELATIVE MOVEMENT BETWEEN SAID HOUSING AND SAID BODY.
Claim 2
Dependent Claim
145 words
IN A KNOB CONSTRUCTION, THE COMBINATION OF: A HOLLOW KNOB BODY HAVING A FRONT FACE INCORPORATING A CYLINDER LOCK RECEIVING OPENING, SAID FRONT FACE HAVING DETENT MEANS THEREUPON; A CYLINDER LOCK HAVING A HOUSING INCORPORATING A CYLINDER PLUG AND HAVING A CYLINDER COVER SUPPORTED UPON THE FORWARD EXTREMITY THEREOF, SAID HOUSING BEING MOVABLE WITHIN SAID BODY AFTER INSERTION THROUGH SAID OPENING INTO A POSITION IN WHICH A PORTION THEREOF IS OUT OF REGISTRY WITH SAID OPENING TO RETAIN SAID HOUSING AGAINST DISPLACEMENT FROM SAID BODY, SAID CYLINDER COVER BEING ADAPTED TO COVER SAID OPENING IN SAID FRONT FACE, SAID COVER HAVING DETENT MEANS THEREUPON CORRESPONDING WITH SAID DETENT MEANS ON SAID FRONT FACE TO LOCATE SAID COVER WITH REFERENCE TO SAID FRONT FACE; AND A SPINDLE INSERTABLE IN SAID BODY HAVING RETENTION MEANS ADAPTED TO POSITIVELY PREVENT RELATIVE MOVEMENT BETWEEN SAID HOUSING AND SAID BODY.
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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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |