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US3758062A Expired / Lapsed US ⏱️ 0.0 years remaining

Multi-purpose stake

Assignee: GRIZZLY Corp
•
Filing: 1972-04-13
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Granted: 1973-09-11
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Expires: 1992-04-13
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Abstract

Abstract A disposable, inexpensive, multi-purpose stake of V-shape horizontal cross section having a sharpened end for penetrating the earth and a flat end for driving therein with a plurality of spaced apertures spaced along its length and a flange extending outwardly from the free ends of each of the legs of said ''''V'''' and interchangeable attachments to be used thereon either as a screed support for concrete flat work, as a nail stake for concrete form board installations, as a tent tethering peg, or as a grade stake having a simple attachment of a banner thereto.

Inventors

  • 👤 R Caldwell
  • 👤 L Pauline

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 18:46
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/04; E04F21/05; E04G; E04G13/00; E04H; E04H12/00; E04H12/02; E04H12/08; E04H15/00; E04H15/32; E04H15/62; E04H17/00; E04H17/14; E04H17/20

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 216 words
The combination of a multi-purpose stake having a sharp end and a flat end for driving into the ground comprising: a. a pair of walls of V-shaped cross-section having a crown with inner and outer sides, and a flange extending outwardly from each of the free ends of said cross-section of said walls; b. a pair of spaced apertures in said crown adjacent said flat end; and c. a one-piece, formed spring-wire, snap-in attachment means on said stake, said attachment means comprising: 1. a straight back section having an upper and lower end, 2. first and second detents offset and extending upwardly and downwardly, respectively, from and in coplanar relationship with each end of said straight back section, 3. a stub end extending upwardly from and connected to said second detent in parallel relationship with said straight back section, 4. a third detent offset and extending downwardly from and connected to said first detent, and 5. a hook coplanar with the first detent section extending upwardly from and connected to the third detent, whereby, when said stub end and said hook are inserted through said apertures from the rear end of said crown, the straight back section will be thereagainst and said stub end and said hook will extend from the front surface of said crown.
Claim 2
Dependent Claim 216 words
The combination of a multi-purpose stake having a sharp end and a flat end for driving into the ground comprising: a. a pair of walls of V-shaped cross-section having a crown with inner and outer sides, and a flange extending outwardly from each of the free ends of said cross-section of said walls; b. a pair of spaced apertures in said crown adjacent said flat end; and c. a one-piece, formed spring-wire, snap-in attachment means on said stake, said attachment means comprising: 1. a straight back section having an upper and lower end, 2. first and second detents offset and extending upwardly and downwardly, respectively, from and in coplanar relationship with each end of said straight back section, 3. a stub end extending upwardly from and connected to said second detent in parallel relationship with said straight back section, 4. a third detent offset and extending downwardly from and connected to said first detent, and 5. a hook coplanar with the first detent section extending upwardly from and connected to the third detent, whereby, when said stub end and said hook are inserted through said apertures from the rear end of said crown, the straight back section will be thereagainst and said stub end and said hook will extend from the front surface of said crown.
Claim 3
Dependent Claim 24 words
first and second detents offset and extending upwardly and downwardly, respectively, from and in coplanar relationship with each end of said straight back section,
Claim 4
Dependent Claim 24 words
first and second detents offset and extending upwardly and downwardly, respectively, from and in coplanar relationship with each end of said straight back section,
Claim 5
Dependent Claim 20 words
a stub end extending upwardly from and connected to said second detent in parallel relationship with said straight back section,
Claim 6
Dependent Claim 20 words
a stub end extending upwardly from and connected to said second detent in parallel relationship with said straight back section,
Claim 7
Dependent Claim 15 words
a third detent offset and extending downwardly from and connected to said first detent, and
Claim 8
Dependent Claim 15 words
a third detent offset and extending downwardly from and connected to said first detent, and
Claim 9
Dependent Claim 60 words
a hook coplanar with the first detent section extending upwardly from and connected to the third detent, whereby, when said stub end and said hook are inserted through said apertures from the rear end of said crown, the straight back section will be thereagainst and said stub end and said hook will extend from the front surface of said crown.
Claim 10
Dependent Claim 60 words
a hook coplanar with the first detent section extending upwardly from and connected to the third detent, whereby, when said stub end and said hook are inserted through said apertures from the rear end of said crown, the straight back section will be thereagainst and said stub end and said hook will extend from the front surface of said crown.

References Cited (Backward Citations)

US1205227A Cited
US1578612A Cited
US1826182A Cited
US2004629A Cited
US2150291A Cited
US3401497A Cited
US3561721A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-09-10 1977-03-12 1977-09-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-09-10 1981-03-12 1981-09-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-09-10 1985-03-12 1985-09-11 $7700.00 Window Closed / Lapsed

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