US3965596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvements in or relating to a marking system
Assignee: Individual
•
Filing: 1975-05-01
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Granted: 1976-06-29
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Expires: 1995-05-01
Abstract
Abstract A marking system for ski runs or the like wherein a plurality of demarcation signs, each of preferably spherical shape and with two halves which are differently colored, are symmetrically arranged along the two edges of the run.
Inventors
- 👤 Peter Schrocksnadel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:03
CPC Classifications
A; A63; A63C; A63C19/00; A63C19/06; A63C19/062; A63C19/10; E; E01; E01F; E01F9/00; E01F9/60; E01F9/604; E01F9/608; E01F9/61
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
115 words
A marking system for the visual identification of an area such as a ski run or the like, said system comprising: a plurality of demarcation signs symmetrically arranged in pairs along opposite edges of a run; each said sign having a first half of a first color and a second half of a second color, the division between said first and second halves of each sign being substantially vertical, and extending in a plane substantially parallel to the run; and said signs of each said pair being positioned with respective similarly colored halves facing each other, whereby a person can readily determine whether he is inside or outside the run upon viewing a single sign.
Claim 2
Dependent Claim
115 words
A marking system for the visual identification of an area such as a ski run or the like, said system comprising: a plurality of demarcation signs symmetrically arranged in pairs along opposite edges of a run; each said sign having a first half of a first color and a second half of a second color, the division between said first and second halves of each sign being substantially vertical, and extending in a plane substantially parallel to the run; and said signs of each said pair being positioned with respective similarly colored halves facing each other, whereby a person can readily determine whether he is inside or outside the run upon viewing a single sign.
Claim 3
Dependent Claim
23 words
The system claimed in claim 1, wherein each said sign is spherically shaped, and each said first and second halves are semispherically shaped.
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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |