US4305175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scraping tool
Assignee: Individual
•
Filing: 1980-03-24
•
Granted: 1981-12-15
•
Expires: 2000-03-24
Abstract
Abstract An improved scraping tool particularly suited for scraping ice from an automobile windshield is formed from a shell member 10 having two pairs of blades (20, 21) disposed longitudinally along the shell. One blade (21) from each pair is straight and disposed transversely across the shell (10) while the other blade (20) from each pair is arcuate in shape and spaced apart from the first blade at the center portions and joined at the distal ends (48, 48').
Inventors
- 👤 Freeman L. Burgess, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:53
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/16; A47L13/00; A47L13/02; A47L13/08; B; B60; B60S; B60S3/00; B60S3/04; B60S3/045; Y; Y10; Y10T; Y10T29/00; Y10T29/45; Y10T29/4594
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
70 words
A scraping tool comprising: a shell member; means for attaching a handle to the top of said shell member; a pair of scraping members spaced longitudinally along the bottom of said shell member; each of said scraping members comprising a pair of spaced apart blades extending generally transversely across said shell member, wherein said blades of said pair of blades are joined to each other at the distal ends thereof.
Claim 2
Dependent Claim
70 words
A scraping tool comprising: a shell member; means for attaching a handle to the top of said shell member; a pair of scraping members spaced longitudinally along the bottom of said shell member; each of said scraping members comprising a pair of spaced apart blades extending generally transversely across said shell member, wherein said blades of said pair of blades are joined to each other at the distal ends thereof.
Claim 3
Dependent Claim
38 words
A tool as recited in claim 1 wherein: said pair of spaced apart blades comprises an arcuate first blade defining a segment of arc and a straight second blade defining a subtended chord of said segment or arc.
Claim 4
Dependent Claim
36 words
A tool as recited in claim 2 wherein said straight second blade for one of said pair of scraping members is parallel to said straight second blade for the other of said pair of scraping members.
Claim 5
Dependent Claim
59 words
A tool as recited in claim 1 wherein: said blades define a scraping plane, and further comprising a handle characterized by a longitudinal axis, said handle being connected to said means for attaching a handle to said shell member to form an acute angle greater than 15° and less than 45° between said longitudinal axis and said scraping plane.
Claim 6
Dependent Claim
22 words
A tool as recited in claim 2 wherein said segment of arc subtends an angle greater than 30° and less than 50°.
Claim 7
Dependent Claim
18 words
A tool as recited in claim 1 wherein said scraping members are selectively removable from said shell member.
References Cited (Backward Citations)
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US3274684A
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US3566430A
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Cited
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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) | 1984-12-14 | 1985-06-15 | 1985-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-14 | 1989-06-15 | 1989-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-14 | 1993-06-15 | 1993-12-15 | $7700.00 | Window Closed / Lapsed |