Patent US3312437A successfully refreshed from Google Patents.
US3312437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tilted stool
Assignee: Individual
•
Filing: 1965-10-23
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Granted: 1967-04-04
•
Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Barth Valerie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:48
CPC Classifications
A; A47; A47C; A47C9/00; A47C9/02; A47C9/025; A47C3/00; A47C3/02; A47C3/029; Y; Y10; Y10S; Y10S248/00; Y10S248/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A TILTABLE STOOL COMPRISING A WEIGHTED BASE, A COLUMN RISING CENTRALLY FROM SAID BASE AND A SEAT SUPPORTED ON SAID COLUMN; SAID BASE BEING PROVIDED WITH A CENTRAL BOSS HAVING AT LEAST THREE PERIPHERALLY SPACED, GENERALLY RADIALLY EXTENDING LEGS WITH A DOWNWARDLY CONVEX CURVATURE WHOSE NADIRS NORMALLY CONTACT THE FLOOR, SAID LEGS HAVING SUBSTANTIALLY STRAIGHT OUTWARD EXTENSIONS BEYOND SAID NADIRS WHICH ARE TILTED UPWARDLY FOR SUPPORTING THE STOOL IN A SEMI-STABLE POSITION OF INCLINATION OF SAID COLUMN IN WHICH SAID BASE RESTS ON THE FLOOR BY THE OUTWARD EXTENSIONS OF TWO ADJOINING LEGS.
Claim 2
Dependent Claim
93 words
A TILTABLE STOOL COMPRISING A WEIGHTED BASE, A COLUMN RISING CENTRALLY FROM SAID BASE AND A SEAT SUPPORTED ON SAID COLUMN; SAID BASE BEING PROVIDED WITH A CENTRAL BOSS HAVING AT LEAST THREE PERIPHERALLY SPACED, GENERALLY RADIALLY EXTENDING LEGS WITH A DOWNWARDLY CONVEX CURVATURE WHOSE NADIRS NORMALLY CONTACT THE FLOOR, SAID LEGS HAVING SUBSTANTIALLY STRAIGHT OUTWARD EXTENSIONS BEYOND SAID NADIRS WHICH ARE TILTED UPWARDLY FOR SUPPORTING THE STOOL IN A SEMI-STABLE POSITION OF INCLINATION OF SAID COLUMN IN WHICH SAID BASE RESTS ON THE FLOOR BY THE OUTWARD EXTENSIONS OF TWO ADJOINING LEGS.
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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) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |