Patent US3281105A successfully refreshed from Google Patents.
US3281105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair base
Assignee: Corry Jamestown Corp
•
Filing: 1965-08-18
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Granted: 1966-10-25
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Expires: 1985-08-18
Abstract
No abstract record available.
Inventors
- 👤 William H Kafferlin
- 👤 James H Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:35
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/002; A47C7/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A CHAIR BASE AND SUPPORT SHAFT COMBINATION COMPRISING A HOLLOW CYLINDRICAL HUB, SPACED LEGS INTERGRALLY ATTACHED TO SAID HUB AND RADIATING THEREFROM, SAID HUB EXTENDING FROM THE LOWER EDGES OF SAID LEGS TO A POSITION SPACED ABOVE SAID LEGS, MEANS ON THE DISTAL ENDS OF SAID LEGS TO ENGAGE A SUPPORTING SURFACE, A HOLLOW CYLINDRICAL SLEEVE CONCENTRICALLY RECEIVED ON SAID HUB, ONE END OF SAID SLEEVE RESTING ON SAID LEGS, A WASHER OVERLYING ONE END OF SAID HUB AND ATTACHED TO SAID SLEEVE, A HOLLOW BUSHING, SAID BUSHING BEING RECEIVED IN SAID HUB, A FIRST FLANGE ON SAID BUSHING, SAID FIRST FLANGE RESTING ON SAID WASHER, A SUPPORT SHAFT ROTATABLY RECEIVED IN SAID BUSHING, MEANS TO ATTACH A CHAIR TO SAID SUPPORT SHAFT, A COLLAR ON SAID SUPPORT SHAFT, A SECOND FLANGE ON SAID BUSHING, SAID COLLAR RESTING ON SAID SECOND FLANGE, SAID BUSHING BEING MADE OF A SELF-LUBRICATING PLASTIC.
Claim 2
Dependent Claim
150 words
A CHAIR BASE AND SUPPORT SHAFT COMBINATION COMPRISING A HOLLOW CYLINDRICAL HUB, SPACED LEGS INTERGRALLY ATTACHED TO SAID HUB AND RADIATING THEREFROM, SAID HUB EXTENDING FROM THE LOWER EDGES OF SAID LEGS TO A POSITION SPACED ABOVE SAID LEGS, MEANS ON THE DISTAL ENDS OF SAID LEGS TO ENGAGE A SUPPORTING SURFACE, A HOLLOW CYLINDRICAL SLEEVE CONCENTRICALLY RECEIVED ON SAID HUB, ONE END OF SAID SLEEVE RESTING ON SAID LEGS, A WASHER OVERLYING ONE END OF SAID HUB AND ATTACHED TO SAID SLEEVE, A HOLLOW BUSHING, SAID BUSHING BEING RECEIVED IN SAID HUB, A FIRST FLANGE ON SAID BUSHING, SAID FIRST FLANGE RESTING ON SAID WASHER, A SUPPORT SHAFT ROTATABLY RECEIVED IN SAID BUSHING, MEANS TO ATTACH A CHAIR TO SAID SUPPORT SHAFT, A COLLAR ON SAID SUPPORT SHAFT, A SECOND FLANGE ON SAID BUSHING, SAID COLLAR RESTING ON SAID SECOND FLANGE, SAID BUSHING BEING MADE OF A SELF-LUBRICATING PLASTIC.
References Cited (Backward Citations)
US2065699A
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US2746705A
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US2992803A
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US3059888A
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US3148855A
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US3188033A
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 |