US3082028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door knob safety device attachment
Assignee: Individual
•
Filing: 1962-01-09
•
Granted: 1963-03-19
•
Expires: 1982-01-09
Abstract
No abstract record available.
Inventors
- 👤 Erwin H Werle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:24
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/001; Y; Y10; Y10S; Y10S292/00; Y10S292/02; Y10T; Y10T292/00; Y10T292/03; Y10T292/82; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/2093
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
A SAFETY DEVICE FOR PREVENTING SMALL CHILDREN FROM ACTUATING THE LATCH MECHANISM ACTUATOR ON A DOOR COMPRISING A RESILIENTLY DEFORMABLE TUBULAR MEMBER POSITIONED COAXIALLY WITH RESPECT TO SAID ACTUATOR, MEANS FOR SECURING ONE END OF SAID MEMBER RIGIDLY TO SAID DOOR, SAID MEMBER HAVING AN ANNULAR RING PORTION DISPOSED ON THE OTHER END THEREOF, SAID MEMBER HAVING A RESILIENT PORTION DISPOSED BETWEEN SAID RING PORTION AND SAID SECURING MEANS FOR YIELDABLY URGING SAID RING PORTION OUTWARDLY WHEREBY AXIAL INWARD THRUST FORCE OF PREDETERMINED MAGNITUDE MANUALLY APPLIED TO SAID RING PORTION DEFORMS SAID RESILIENT PORTION TO EXPOSE SAID ACTUATOR SUFFICIENTLY FOR MANUAL FRICTIONAL ENGAGEMENT THEREOF TO ACTUATE SAID LATCH MECHANISM FOR OPENING SAID DOOR.
References Cited (Backward Citations)
US2587285A
Cited
US2781220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |