Patent US3278250A successfully refreshed from Google Patents.
US3278250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawer rail assembly
Assignee: Knape and Vogt Manufacturing Co
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Filing: 1965-03-04
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Granted: 1966-10-11
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Expires: 1985-03-04
Abstract
No abstract record available.
Inventors
- 👤 James B Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:28
CPC Classifications
A; A47; A47B; A47B88/00; A47B88/40; A47B88/49; A47B88/493; A47B2210/00; A47B2210/0002; A47B2210/0029; A47B2210/0043; A47B2210/0051; A47B2210/0059
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A DRAWER RAIL ASSEMBLY COMPRISING: A DRAWER RAIL, A CASE RAIL, AND AN INTERMEDIATE RAIL; SAID RAILS HAVING ROLLING ELEMENTS THEREBETWEEN, INCLUDING WHEEL TYPE ROLLERS AT LEAST BETWEEN SAID CASE RAIL AND SAID DRAWER RAIL AND ROTATABLY MOUNTED TO SAID INTERMEDIATE RAIL, THE BOTTOM EDGE OF SAID CASE RAIL PROJECTING AWAY FROM THE MAIN RAIL BODY, BENEATH SAID DRAWER RAIL AND INTERMEDIATE RAIL, FORMING A TRACK SURFACE FOR SAID ROLLERS; SAID TRACK-FORMING BOTTOM EDGE HAVING AN ELONGATED UPWARDLY OPEN GROOVE BE TWEEN SAID MAIN RAIL BODY AND SAID TRACK SURFACE; AND SAID INTERMEDIATE RAIL HAVING A LOWER EDGE PROJECTING DOWN BEYOND THE PERIPHERY OF SAID ROLLERS AND BEYOND SAID TRACK SURFACE INTO SAID GROOVE TO PREVENT SIGNIFICANT LATERAL MOVEMENT OF SAID INTERMEDIATE RAIL THAT WOULD CAUSE DISENGAGEMENT OF SAID ROLLERS FROM SAID TRACK SURFACE.
Claim 2
Dependent Claim
134 words
A DRAWER RAIL ASSEMBLY COMPRISING: A DRAWER RAIL, A CASE RAIL, AND AN INTERMEDIATE RAIL; SAID RAILS HAVING ROLLING ELEMENTS THEREBETWEEN, INCLUDING WHEEL TYPE ROLLERS AT LEAST BETWEEN SAID CASE RAIL AND SAID DRAWER RAIL AND ROTATABLY MOUNTED TO SAID INTERMEDIATE RAIL, THE BOTTOM EDGE OF SAID CASE RAIL PROJECTING AWAY FROM THE MAIN RAIL BODY, BENEATH SAID DRAWER RAIL AND INTERMEDIATE RAIL, FORMING A TRACK SURFACE FOR SAID ROLLERS; SAID TRACK-FORMING BOTTOM EDGE HAVING AN ELONGATED UPWARDLY OPEN GROOVE BE TWEEN SAID MAIN RAIL BODY AND SAID TRACK SURFACE; AND SAID INTERMEDIATE RAIL HAVING A LOWER EDGE PROJECTING DOWN BEYOND THE PERIPHERY OF SAID ROLLERS AND BEYOND SAID TRACK SURFACE INTO SAID GROOVE TO PREVENT SIGNIFICANT LATERAL MOVEMENT OF SAID INTERMEDIATE RAIL THAT WOULD CAUSE DISENGAGEMENT OF SAID ROLLERS FROM SAID TRACK SURFACE.
References Cited (Backward Citations)
US3186785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |