US3280507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush closing sliding door assembly
Assignee: Individual
•
Filing: 1964-04-21
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Granted: 1966-10-25
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Expires: 1984-04-21
Abstract
No abstract record available.
Inventors
- 👤 Kollsman Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:29
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/10; E05D15/1042; E05D2015/1052; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/404; E05Y2201/41; E05Y2201/412; E05Y2201/50; E05Y2900/00; E05Y2900/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A FLUSH CLOSING ASSEMBLY OF SUBSTANTIALLY VERTICAL SLIDING DOORS FOR A STRUCTURAL DOOR OPENING, THE ASSEMBLY COMPRISING, IN COMBINATION, A PLURALITY OF SLIDING DOORS; A PAIR OF REARWARDLY EXTENDING SUPPORTING BRACKETS MOUNTED AT THE BOTTOM OF EACH DOOR, EACH SAID BRACKET COMPRISING AN ANTI-FRICTION ELEMENT ERARWARDLY SPACED FROM THE DOOR PANEL AND RESTING ON THE SUPPORTING SURFACE HEREINAFTER RECITED; A COMMON DOOR SUPPORTING BOTTOM SILL ON WHICH SAID DOOR ARE MOVABLE FROM SIDE TO SIDE AS WELL AS RIGHT ANGLES THERETO, SAID SILL HAVING A DOOR SUPPORTING UPPER SURFACE ENGAGED BY SAID ANTI-FRICTION ELEMENT, SAID SURFACE BEING OF A DEPTH SUFFICIENT TO ACCOMMODATE TWO DOORS IN A POSITION ONE BEHIND THE OTHER AND HAVING A DOWNWARD SLANT IN A FORWARD DIRECTION THROUGHOUT THE EXTENT OF ENGAGEMENT WITH THE ANTI-FRICTION ELEMENTS WITHIN THE RANGE OF MOVEMENT OF THE DOORS FROM SIDE TO SIDE TO IMPART TO THE DOORS UNDER THE INFLUENCE OF GRAVITY A
Claim 2
Dependent Claim
153 words
A FLUSH CLOSING ASSEMBLY OF SUBSTANTIALLY VERTICAL SLIDING DOORS FOR A STRUCTURAL DOOR OPENING, THE ASSEMBLY COMPRISING, IN COMBINATION, A PLURALITY OF SLIDING DOORS; A PAIR OF REARWARDLY EXTENDING SUPPORTING BRACKETS MOUNTED AT THE BOTTOM OF EACH DOOR, EACH SAID BRACKET COMPRISING AN ANTI-FRICTION ELEMENT ERARWARDLY SPACED FROM THE DOOR PANEL AND RESTING ON THE SUPPORTING SURFACE HEREINAFTER RECITED; A COMMON DOOR SUPPORTING BOTTOM SILL ON WHICH SAID DOOR ARE MOVABLE FROM SIDE TO SIDE AS WELL AS RIGHT ANGLES THERETO, SAID SILL HAVING A DOOR SUPPORTING UPPER SURFACE ENGAGED BY SAID ANTI-FRICTION ELEMENT, SAID SURFACE BEING OF A DEPTH SUFFICIENT TO ACCOMMODATE TWO DOORS IN A POSITION ONE BEHIND THE OTHER AND HAVING A DOWNWARD SLANT IN A FORWARD DIRECTION THROUGHOUT THE EXTENT OF ENGAGEMENT WITH THE ANTI-FRICTION ELEMENTS WITHIN THE RANGE OF MOVEMENT OF THE DOORS FROM SIDE TO SIDE TO IMPART TO THE DOORS UNDER THE INFLUENCE OF GRAVITY A
References Cited (Backward Citations)
US2899252A
Cited
US2644205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |