US4353956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical net
Assignee: US Netting Inc
•
Filing: 1981-06-05
•
Granted: 1982-10-12
•
Expires: 2001-06-05
Abstract
Abstract A plastic net with a partial to a multiplicity of spirals between the interstices or crossings of the net filaments is disclosed.
Inventors
- 👤 George S. Nalle, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:30
CPC Classifications
A; A61; A61F; A61F15/00; A47; A47L; A47L23/00; A47L23/22; A47L23/24; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/13; D; D04; D04H; D04H3/00; D04H3/02; D04H3/04; B29L; B29L2028/00; Y; Y10; Y10S; Y10S264/00; Y10S264/81; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2925; Y10T442/00; Y10T442/10; Y10T442/184
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
A net-like structure comprising at least two crossing layers, the first of said layers being a plurality of first helical filaments the axes of which are parallel and the second of said layers being a plurality of second helical filaments the axes of which are parallel but intersect the axes of said first helical filaments, said first and second helical filaments being fused together at each point of intersection.
Claim 2
Dependent Claim
69 words
A net-like structure comprising at least two crossing layers, the first of said layers being a plurality of first helical filaments the axes of which are parallel and the second of said layers being a plurality of second helical filaments the axes of which are parallel but intersect the axes of said first helical filaments, said first and second helical filaments being fused together at each point of intersection.
Claim 3
Dependent Claim
28 words
A net-like structure as recited in claim 1 wherein there is at least a partial revolution of said first and second helical filaments between each point of intersection.
Claim 4
Dependent Claim
27 words
A net-like structure as recited in claim 1 wherein there are a multiplicity of revolutions of said first and second helical filaments between each point of intersection.
Claim 5
Dependent Claim
27 words
A net-like structure as recited in claim 1 wherein each filament is composed of two different plastic materials characterized by having different properties of contraction and orientation.
Claim 6
Dependent Claim
21 words
A net-like structure as recited in claim 4 wherein the two materials are a synthetic elastomeric rubber-like material and a plastic.
Claim 7
Dependent Claim
33 words
A net-like structure as recited in claim 4 wherein one material is a synthetic elastomeric rubber-like material and the other is a plastic material selected from the group consisting of polypropylene and polyethylene.
Claim 8
Dependent Claim
22 words
A net-like structure as recited in claim 1 comprising three crossing layers, one of said layers being composed of main direction filaments.
Claim 9
Dependent Claim
15 words
A net-like structure as recited in claim 7 wherein said main direction filaments are helical.
Claim 10
Dependent Claim
22 words
A net-like structure as recited in claim 7 wherein said main direction filaments are composed solely of a synthetic elastomeric rubber-like material.
References Cited (Backward Citations)
US3123512A
Cited
US3135646A
Cited
US3663352A
Cited
US3744529A
Cited
US3686380A
Cited
US3968621A
Cited
AU496649B2
Cited
US4174416A
Cited
US4254181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-11 | 1986-04-12 | 1986-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-11 | 1990-04-12 | 1990-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-11 | 1994-04-12 | 1994-10-12 | $7700.00 | Window Closed / Lapsed |