US3243836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door check
Assignee: Stanley Works
•
Filing: 1964-09-22
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Granted: 1966-04-05
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Expires: 1984-09-22
Abstract
No abstract record available.
Inventors
- 👤 Edmund F Reiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:43
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/46; E05C17/52; Y; Y10; Y10S; Y10S292/00; Y10S292/15; Y10T; Y10T292/00; Y10T292/08; Y10T292/0876
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
FOR LIMITING THE MOVEMENT OF A SWINGING DOOR, A DOOR CHECK RIGIDLY ATTACHABLE TO A SUPPORT SURFACE FOR BOTH FLOOR AND WALL MOUNTING COMPRISING A MOUNTING BLOCK FOR ENGAGING THE SUPPORTING SURFACE, THE MOUNTING BLOCK HAVING A CHAMFERED OUTER SURFACE EXTENDING TOWARD THE SUPPROTING SURFACE AT ANGLE OF APPROXIMATELY 45*, AND A REMOVABLE BACKSTOP INCLUIDNG A HEAD ENGAGEABLY SUPPORTED ON THE CHAMFERED OUTER SURFACES OF THE MOUNTING BLOCK, THE HEAD HAVING AN IMPACT-RECEIVING FACE DIRECTED OUTWARDLY FROM THE CHAMFERED OUTER SURFACE AT AN ANGLE OF APPROXIMATELY 45* FOR REVERSIBLE POSITIONING OF THE BACKSTOP RELATIVE TO THE MOUNTING BLOCK.
Claim 2
Dependent Claim
98 words
FOR LIMITING THE MOVEMENT OF A SWINGING DOOR, A DOOR CHECK RIGIDLY ATTACHABLE TO A SUPPORT SURFACE FOR BOTH FLOOR AND WALL MOUNTING COMPRISING A MOUNTING BLOCK FOR ENGAGING THE SUPPORTING SURFACE, THE MOUNTING BLOCK HAVING A CHAMFERED OUTER SURFACE EXTENDING TOWARD THE SUPPROTING SURFACE AT ANGLE OF APPROXIMATELY 45*, AND A REMOVABLE BACKSTOP INCLUIDNG A HEAD ENGAGEABLY SUPPORTED ON THE CHAMFERED OUTER SURFACES OF THE MOUNTING BLOCK, THE HEAD HAVING AN IMPACT-RECEIVING FACE DIRECTED OUTWARDLY FROM THE CHAMFERED OUTER SURFACE AT AN ANGLE OF APPROXIMATELY 45* FOR REVERSIBLE POSITIONING OF THE BACKSTOP RELATIVE TO THE MOUNTING BLOCK.
References Cited (Backward Citations)
US3086803A
Cited
US3180666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |