US3106418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical door stop means
Assignee: Individual
•
Filing: 1962-05-04
•
Granted: 1963-10-08
•
Expires: 1982-05-04
Abstract
No abstract record available.
Inventors
- 👤 Knapp William Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:58
CPC Classifications
B; B60; B60J; B60J5/00; B60J5/04; B60J5/042; B60J5/0456; B60J5/0459; Y; Y10; Y10S; Y10S292/00; Y10S292/65; Y10T; Y10T292/00; Y10T292/28; Y10T292/282; Y10T292/304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A MECHANICAL DOOR STOP FOR A DOOR PIVOTAL ABOUT AN UPRIGHT AXIS TOWARD AND AWAY FROM A DOOR JAMB, SAID DOOR STOP NORMALLY HOLDING SAID DOOR IN ITS CLOSED POSITION AND COMPRISING A SUBSTANTIALLY SOLID BODY FIXEDLY CONNECTED TO SAID DOOR AND HAVING A FIRST RATCHED FLANGE AT THE UPPER SIDE THEREOF FIXEDLY SECURED THERETO, A SECOND RATCHET FLANGE SUPERIMPOSED OVER SAID FIRST RATCHET FLANGE AND NORMALLY MESHING THEREWITH TO HOLD SAID DOOR IN CLOSED POSITION, A LEVER HAVING A PAIR OF OPPOSED ENDS WITH ONE OF SAID ENDS FIXEDLY CONNECTED TO SAID SECOND RATCHET FLANGE AND MEANS PIVOTALLY CONNECTING THE OTHER END OF SAID LEVER WITH THE JAMB OF SAID DOOR, AN MANUALLY-OPERABLE MEANS MOUNTED ON SAID DOOR AND CONNECTED WITH SAID SECOND RATCHET FLANGE TO EFFECT DISCONNECTION OF SAID SECOND RATCHET FLANGE FROM SAID FIRST RATCHET FLANGE WHEREBY SAID DOOR MAY BE PIVOTED TO ITS OPEN POSITION.
Claim 2
Dependent Claim
149 words
A MECHANICAL DOOR STOP FOR A DOOR PIVOTAL ABOUT AN UPRIGHT AXIS TOWARD AND AWAY FROM A DOOR JAMB, SAID DOOR STOP NORMALLY HOLDING SAID DOOR IN ITS CLOSED POSITION AND COMPRISING A SUBSTANTIALLY SOLID BODY FIXEDLY CONNECTED TO SAID DOOR AND HAVING A FIRST RATCHED FLANGE AT THE UPPER SIDE THEREOF FIXEDLY SECURED THERETO, A SECOND RATCHET FLANGE SUPERIMPOSED OVER SAID FIRST RATCHET FLANGE AND NORMALLY MESHING THEREWITH TO HOLD SAID DOOR IN CLOSED POSITION, A LEVER HAVING A PAIR OF OPPOSED ENDS WITH ONE OF SAID ENDS FIXEDLY CONNECTED TO SAID SECOND RATCHET FLANGE AND MEANS PIVOTALLY CONNECTING THE OTHER END OF SAID LEVER WITH THE JAMB OF SAID DOOR, AN MANUALLY-OPERABLE MEANS MOUNTED ON SAID DOOR AND CONNECTED WITH SAID SECOND RATCHET FLANGE TO EFFECT DISCONNECTION OF SAID SECOND RATCHET FLANGE FROM SAID FIRST RATCHET FLANGE WHEREBY SAID DOOR MAY BE PIVOTED TO ITS OPEN POSITION.
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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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |