US4183524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Practice net
Assignee: Individual
•
Filing: 1976-10-01
•
Granted: 1980-01-15
•
Expires: 1996-10-01
Abstract
Abstract A practice net for tennis that can be attached to a garage door and stored in a plane co-planar with the plane of the garage door in a first condition of operation and be operable in a position substantially perpendicular to the garage door in a second condition of operation for rebounding tennis balls.
Inventors
- 👤 Warren M. Kifferstein
- 👤 Harry P. Kifferstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:46
CPC Classifications
A; A63; A63B; A63B63/00; A63B69/00; A63B69/0097; A63B71/00; A63B71/02; A63B2063/006; A63B2208/00; A63B2208/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
181 words
In combination with a building overhead door having an interior side and an exterior side and being capable of occupying a lowered closed position whereby said door has a lower edge disposed proximate to the ground and a raised open position whereby said lower edge is disposed away from the ground, a practice net for impacting by a ball and for rebounding said ball, said practice net comprising a substantially rectangular frame, a net, means for holding said net stretched within the periphery of said frame, hinge means pivotally attaching an end of said frame proximate to said lower edge of said overhead door and latching means removably fastening the other end of said frame to the interior side of said overhead door above said lower edge of said overhead door for maintaining said frame in a stored position in a plane substantially parallel to the interior side of said overhead door, said frame being suspended from said lower edge of said overhead door when said door is raised and said practice net is in use with said latching means unfastened.
Claim 2
Dependent Claim
181 words
In combination with a building overhead door having an interior side and an exterior side and being capable of occupying a lowered closed position whereby said door has a lower edge disposed proximate to the ground and a raised open position whereby said lower edge is disposed away from the ground, a practice net for impacting by a ball and for rebounding said ball, said practice net comprising a substantially rectangular frame, a net, means for holding said net stretched within the periphery of said frame, hinge means pivotally attaching an end of said frame proximate to said lower edge of said overhead door and latching means removably fastening the other end of said frame to the interior side of said overhead door above said lower edge of said overhead door for maintaining said frame in a stored position in a plane substantially parallel to the interior side of said overhead door, said frame being suspended from said lower edge of said overhead door when said door is raised and said practice net is in use with said latching means unfastened.
Claim 3
Dependent Claim
28 words
The practice net of claim 1 wherein said means for holding said net within the periphery of said frame are adjustable means providing adjustable tension on said net.
Claim 4
Dependent Claim
16 words
The practice net of claim 1 further comprising means removably attaching said frame to the ground.
Claim 5
Dependent Claim
15 words
The practice net of claim 1 wherein said frame is made of tubular metallic members.
Claim 6
Dependent Claim
45 words
The practice net of claim 1 wherein said frame further comprises a pair of telescopic adjustable legs each mounted on a side of said frame for engagement with the ground and for supporting said frame from the ground at an angle relative to the vertical.
Claim 7
Dependent Claim
63 words
The practice net of claim 1 further comprising a second net and link means supporting said second net spaced from and substantially parallel to said first mentioned net, said link means comprising a pair of rigid members each pivotally attached at an end to one side of said frame and pivotally attached at the other end to a side of said second net.
References Cited (Backward Citations)
US2517461A
Cited
US3502330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |