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US4017970A Expired / Lapsed US ⏱️ 0.0 years remaining

Tile and tub scraper

Assignee: Lawrence Peska Associates Inc
•
Filing: 1975-10-06
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Granted: 1977-04-19
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Expires: 1995-10-06
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Abstract

Abstract A novel tile and tub scraper is disclosed comprising two flat blade holders adapted to fit in the palm of the hand and having a scraper blade secured between the blade holders. One blade holder has a horizontal groove thereon for gripably receiving a forefinger where the other blade holder has an indentation substantially vertical to the groove for gripably receiving a thumb, the edge of the scraper blade substantially horizontal to said groove.

Inventors

  • 👤 Ann Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 19:40
CPC Classifications
B; B26; B26B; B26B5/00; B26B5/006; A; A47; A47L; A47L13/00; A47L13/02; A47L13/08; A47L17/00; A47L17/04; A47L17/06; Y; Y10; Y10S; Y10S16/00; Y10S16/12

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 214 words
A hand held scraper comprising a first flat blade holder means having a flat surface, said first blade holder having a substantially horizontal concave groove on the surface opposite said flat surface for gripably receiving a forefinger, said flat surface of said first blade holder abuttingly positioned against the flat surface of a second flat blade holder, said second blade holder having a concave indentation thereon opposite its flat surface for gripably receiving a thumb, said indentation being substantially vertical to said groove, said first blade holder and said second blade holder having opposed recessed surfaces along one side, said holders being positioned so that the flat surfaces of each abut one another flushly for positioning a scraper blade between said recessed surfaces so that the edge of said blade is exposed and substantially parallel to said groove, removable pin means securingly inserted through said first and second holders for attaching said holders to one another and holding a scraper blade in a fixed position in said scraper, said first and second blade holders being of a size sufficient to fit in the palm of the hand so that said scraper may be manipulated by the thumb and forefinger and optionally may be urged towards a work surface by the heel of the hand.
Claim 2
Dependent Claim 214 words
A hand held scraper comprising a first flat blade holder means having a flat surface, said first blade holder having a substantially horizontal concave groove on the surface opposite said flat surface for gripably receiving a forefinger, said flat surface of said first blade holder abuttingly positioned against the flat surface of a second flat blade holder, said second blade holder having a concave indentation thereon opposite its flat surface for gripably receiving a thumb, said indentation being substantially vertical to said groove, said first blade holder and said second blade holder having opposed recessed surfaces along one side, said holders being positioned so that the flat surfaces of each abut one another flushly for positioning a scraper blade between said recessed surfaces so that the edge of said blade is exposed and substantially parallel to said groove, removable pin means securingly inserted through said first and second holders for attaching said holders to one another and holding a scraper blade in a fixed position in said scraper, said first and second blade holders being of a size sufficient to fit in the palm of the hand so that said scraper may be manipulated by the thumb and forefinger and optionally may be urged towards a work surface by the heel of the hand.
Claim 3
Dependent Claim 48 words
The hand held scraper of claim 1, wherein said scraper comprises a safety razor blade having opening means therein for receiving said pin means, said pin means being adapted to flushly fit through said opening means in said blade for preventing said blade from moving in the scraper.
Claim 4
Dependent Claim 53 words
The hand held scraper of claim 2 wherein said scraper comprises a double edged safety razor blade having a universal opening therein for receiving two of said pin means, said pin means being adapted to flushly fit through two openings in said universal opening for preventing said blade from moving in said scraper.

References Cited (Backward Citations)

GB106742A Cited
US1317316A Cited
US673506A Cited
US1048778A Cited
US1432798A Cited
CH165909A Cited
US2215749A Cited
CH209182A Cited
DE707275C Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-04-18 1980-10-18 1981-04-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-04-18 1984-10-18 1985-04-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-04-18 1988-10-18 1989-04-19 $7700.00 Window Closed / Lapsed

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