Patent US3279133A successfully refreshed from Google Patents.
US3279133A
Expired / Lapsed
US
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Boundary marker
Assignee: Individual
•
Filing: 1964-08-18
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Granted: 1966-10-18
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Expires: 1984-08-18
Abstract
No abstract record available.
Inventors
- 👤 Korte John F De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:05
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/627; E01F9/629; Y; Y10; Y10T; Y10T403/00; Y10T403/45; Y10T403/459
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A BOUNDARY MARKER FOR INSERTION IN THE GROUND FOR INDICATING THE LIMITS OF DESIGNATED AREAS ON THE GROUND AND ADAPTED TO RETURN TO ITS UPRIGHT POSITION AFTER BEING STRUCK COMPRISING: A SOCKET HAVING A CENTRAL OPENING THEREIN INSERTED IN THE GROUND; A STUD SIZED TO FIT IN THE CENTRAL OPENING OF THE SOCKET AND HAVING A FLANGE THEREON ADJACENT THE TOP THEREOF TO INHIBIT THE FURTHER ENTRY OF THE STUD INTO THE SOCKET; THE STUD BEING THREADED FOR AT LEAST A PORTION OF ITS LENGTH ABOVE THE FLANGE; A SPRING THREADED ONTO THE THREADED PORTION OF THE STUD; A MARKER ROD HAVING AN OPEN END AND A THREADED PORTION AT THE LOWER END THEREOF THREADED SIN THE REVERSE DIRECTION FROM THE THREADED PORTION OF THE STUD THREADED INTO THE SPRING.
Claim 2
Dependent Claim
130 words
A BOUNDARY MARKER FOR INSERTION IN THE GROUND FOR INDICATING THE LIMITS OF DESIGNATED AREAS ON THE GROUND AND ADAPTED TO RETURN TO ITS UPRIGHT POSITION AFTER BEING STRUCK COMPRISING: A SOCKET HAVING A CENTRAL OPENING THEREIN INSERTED IN THE GROUND; A STUD SIZED TO FIT IN THE CENTRAL OPENING OF THE SOCKET AND HAVING A FLANGE THEREON ADJACENT THE TOP THEREOF TO INHIBIT THE FURTHER ENTRY OF THE STUD INTO THE SOCKET; THE STUD BEING THREADED FOR AT LEAST A PORTION OF ITS LENGTH ABOVE THE FLANGE; A SPRING THREADED ONTO THE THREADED PORTION OF THE STUD; A MARKER ROD HAVING AN OPEN END AND A THREADED PORTION AT THE LOWER END THEREOF THREADED SIN THE REVERSE DIRECTION FROM THE THREADED PORTION OF THE STUD THREADED INTO THE SPRING.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |