Patent US4177739A successfully refreshed from Google Patents.
US4177739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertically adjustable table
Assignee: Back Bay Co Inc
•
Filing: 1978-09-05
•
Granted: 1979-12-11
•
Expires: 1998-09-05
Abstract
Abstract A table has upper and lower sections with the lower section provided with legs having vertically spaced holders and the upper sections having supports engageable therewith. The two sections are interconnected to enable the upper section to be turned in one direction to effect engagement with a selected set of holders and in the opposite direction to effect their release therefrom and the connection between the sections also enables the upper section then to be moved vertically to an extent such that the supports may be seated on another set of holders.
Inventors
- 👤 Richard D. Phelps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:28
CPC Classifications
A; A47; A47B; A47B9/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
127 words
A table comprising an upper section including a top, depending and inwardly disposed supports connected thereto, and a central, vertical sleeve to which the inner ends of the supports are secured, and lower supporting section including legs, each extending upwardly and inwardly between two supports, a central pivot of substantial length extending downwardly through said sleeve, the inner ends of said legs secured to the upper end of said pivot, and means to enable at least two different table heights to be established, said means including leg-mounted, laterally exposed and vertically spaced support holders, each holder engageable by a support when the upper section is held in an appropriate vertical position relative thereto and turned into a position in which that support is seated thereon by gravity.
Claim 2
Dependent Claim
127 words
A table comprising an upper section including a top, depending and inwardly disposed supports connected thereto, and a central, vertical sleeve to which the inner ends of the supports are secured, and lower supporting section including legs, each extending upwardly and inwardly between two supports, a central pivot of substantial length extending downwardly through said sleeve, the inner ends of said legs secured to the upper end of said pivot, and means to enable at least two different table heights to be established, said means including leg-mounted, laterally exposed and vertically spaced support holders, each holder engageable by a support when the upper section is held in an appropriate vertical position relative thereto and turned into a position in which that support is seated thereon by gravity.
Claim 3
Dependent Claim
14 words
The table of claim 1 and means to lock the sleeve to the pivot.
Claim 4
Dependent Claim
13 words
The table of claim 1 in which said leg includes vertically spaced holders.
Claim 5
Dependent Claim
19 words
The table of claim 1 in which the leg-mounted support holders enable three different table heights to be established.
Claim 6
Dependent Claim
22 words
The table of claim 1 and a connection between the lower end of said pivot and the corresponding ends of the legs.
Claim 7
Dependent Claim
22 words
The table of claim 1 in which the supports are downwardly and inwardly inclined and the legs are upwardly and inwardly inclined.
Claim 8
Dependent Claim
22 words
The table of claim 1 in which the supports are downwardly and inwardly curved and the legs are upwardly and inwardly curved.
Claim 9
Dependent Claim
18 words
The table of claim 7 in which each of the supports and the legs has the same radius.
Claim 10
Dependent Claim
11 words
The table of claim 7 in which the top is circular.
References Cited (Backward Citations)
US166628A
Cited
US876023A
Cited
US1113140A
Cited
US1127287A
Cited
CH104517A
Cited
US2515911A
Cited
US2723888A
Cited
US2980201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |