US3227423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow fence
Assignee: Thielex Plastics Corp
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Filing: 1963-07-10
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Granted: 1966-01-04
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Expires: 1983-07-10
Abstract
No abstract record available.
Inventors
- 👤 Matteo Adolphe J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:56
CPC Classifications
E; E01; E01F; E01F7/00; E01F7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN A FENCE OF THE KIND INCLUDING A PLURALITY OF SLATS INTERFASTENED IN INTERSPACED RELATIONSHIP BY AT LEAST TWO WIRES WHICH STRADDLE THE SLATS AND ARE INTERTWISTED BETWEEN THE SLATS BY AUTOMATIC MACHINERY SO THAT THE WIRES PRESS ON EACH SLAT THEREBETWEEN TO SELF-INDENT THE SLAT''S CORNERS AND LOCK THE SLAT AGAINST SLIPPING LONGITUDINALLY FROM THE WIRES; THE IMPROVEMENT WHEREIN SAID SLATS ARE PLASTIC EXTRUSIONS FREE FROM PRE-NOTCHING AND IN THE FORM OF MINIATURIZED I-BEAM SECTIONS, EACH HAVING A WEB AND SHORT FLANGES WITH AT LEAST SAID WEB MADE OF PLASTIC TOO HARD TO BE SELF-INDENTED BY SAID WIRES AND WITH SAID FLANGES HAVING EDGES AGAINST WHICH THE WIRES PRESS AND WHICH ARE SHARP TO A DEGREE CAUSING THE WIRES TO SELF-INDENT THESE EDGES SO AS TO LOCK THE SLATS AGAINST SLIPPING LONGITUDINALLY WITH RESPECT TO THE WIRES.
Claim 2
Dependent Claim
138 words
IN A FENCE OF THE KIND INCLUDING A PLURALITY OF SLATS INTERFASTENED IN INTERSPACED RELATIONSHIP BY AT LEAST TWO WIRES WHICH STRADDLE THE SLATS AND ARE INTERTWISTED BETWEEN THE SLATS BY AUTOMATIC MACHINERY SO THAT THE WIRES PRESS ON EACH SLAT THEREBETWEEN TO SELF-INDENT THE SLAT''S CORNERS AND LOCK THE SLAT AGAINST SLIPPING LONGITUDINALLY FROM THE WIRES; THE IMPROVEMENT WHEREIN SAID SLATS ARE PLASTIC EXTRUSIONS FREE FROM PRE-NOTCHING AND IN THE FORM OF MINIATURIZED I-BEAM SECTIONS, EACH HAVING A WEB AND SHORT FLANGES WITH AT LEAST SAID WEB MADE OF PLASTIC TOO HARD TO BE SELF-INDENTED BY SAID WIRES AND WITH SAID FLANGES HAVING EDGES AGAINST WHICH THE WIRES PRESS AND WHICH ARE SHARP TO A DEGREE CAUSING THE WIRES TO SELF-INDENT THESE EDGES SO AS TO LOCK THE SLATS AGAINST SLIPPING LONGITUDINALLY WITH RESPECT TO THE WIRES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |