Patent US3483619A successfully refreshed from Google Patents.
Patent US3758062A successfully refreshed from Google Patents.
US3758062A
Expired / Lapsed
US
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Multi-purpose stake
Assignee: GRIZZLY Corp
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Filing: 1972-04-13
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Granted: 1973-09-11
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Expires: 1992-04-13
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.
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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 |