US3212816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair desk
Assignee: American Seating Co
•
Filing: 1964-05-08
•
Granted: 1965-10-19
•
Expires: 1984-05-08
Abstract
No abstract record available.
Inventors
- 👤 Walter E Nordmark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:18
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A SWIVEL CHAIR STRUCTURE, A SEAT BASE EQUIPPED WITH A SWIVEL CUP HAVING A RAISED RIM PROVIDED WITH SPACED SLOTS, SAID BASE HAVING SIDE FLANGES ADAPTED TO RELEASABLY ENGAGE SAID SLOTS FOR THE ADJUSTMENT OF SAID BASE FLANGES WITH RESPECT TO SAID CUP, A PLATE MOUNTED ON SAID BASE EQUIPPED WITH A DEPENDING CENTER PIN, A SEAT CARRIED BY SAID PLATE, AND A TORSION SPRING FIXED TO SID CUP AT ONE END AND AT ITS OTHER END TO SAID PLATE.
Claim 2
Dependent Claim
81 words
IN A SWIVEL CHAIR STRUCTURE, A SEAT BASE EQUIPPED WITH A SWIVEL CUP HAVING A RAISED RIM PROVIDED WITH SPACED SLOTS, SAID BASE HAVING SIDE FLANGES ADAPTED TO RELEASABLY ENGAGE SAID SLOTS FOR THE ADJUSTMENT OF SAID BASE FLANGES WITH RESPECT TO SAID CUP, A PLATE MOUNTED ON SAID BASE EQUIPPED WITH A DEPENDING CENTER PIN, A SEAT CARRIED BY SAID PLATE, AND A TORSION SPRING FIXED TO SID CUP AT ONE END AND AT ITS OTHER END TO SAID PLATE.
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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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |