US3100122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical door stop means
Assignee: Individual
•
Filing: 1960-10-07
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Granted: 1963-08-06
•
Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 William F Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:20
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05B; E05B77/00; Y; Y10; Y10S; Y10S292/00; Y10S292/65; Y10T; Y10T292/00; Y10T292/28; Y10T292/285; Y10T292/286
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
A DOOR STOP COMPRISING AN ELONGATED SUBSTANTIALLY CHANNEL-SHAPED MEMBER HAVING A MAIN BODY PORTION INCLUDING A BIGHT FROM THE ENDS OF WHICH PROJECT A PAIR OF END WALLS, SAID MAIN BODY PORTION BEING MOUNTED ON SAID DOOR WITH AN END WALL FACING THE DOOR JAMB FROM WHICH THE DOOR IS SUSPENDED, A U-SHAPED GUIDE MEMBER HAVING ITS ENDS FIXEDLY SECURED TO SAID END WALLS AND DISPOSED IN SPACED RELATION RELATIVE TO SAID BIGHT, A BAR MOUNTED FOR RECIPROCATION WITHIN SAID U-SHAPED GUIDE MEMBER, MEANS DISPOSED BETWEEN SAID U-SHAPED MEMBER AND SAID BAR CONSTANTLY BIASING SAID BAR FOR MOVEMENT AWAY FROM SAID U-SHAPED MEMBER, LEVER MEANS PIVOTALLY SUPPORTED ON SAID MAIN BODY PORTION AND ENGAGING SAID
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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |