Patent US3274684A successfully refreshed from Google Patents.
US3274684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scraper device
Assignee: Individual
•
Filing: 1964-12-17
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Granted: 1966-09-27
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Expires: 1984-12-17
Abstract
No abstract record available.
Inventors
- 👤 William J Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:43
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A SCRAPER DEVICE, COMPRISING, A CUTTING BLADE HAVING A CONCAVE FRONT SURFACE, SAID BLADE TERMINATING ALONG ITS LOWER EDGE IN A REARWARDLY TAPERING FRONT SURFACE WHEN SAID BLADE IS SUBSTANTIALLY VERTICALLY DISPOSED, A SHOE SURFACE DEFINING A CUTTING EDGE WITH THE LOWER EDGE OF SAID BLADE AND EXTENDING REARWARDLY FROM THE LOWER EDGE OF SAID TAPERING FRONT SURFACE AND TERMINATING IN A SUBSTANTIALLY VERTICALLY DISPOSED REAR CUTTING SURFACE, AND AN ELONGATED HANDLE MEMBER SECURED TO THE BACK SURFACE OF SAID CUTTING BLADE, SAID HANDLE MEMBER EXTENDING REARWARDLY OF SAID FRONT SURFACE.
Claim 2
Dependent Claim
91 words
A SCRAPER DEVICE, COMPRISING, A CUTTING BLADE HAVING A CONCAVE FRONT SURFACE, SAID BLADE TERMINATING ALONG ITS LOWER EDGE IN A REARWARDLY TAPERING FRONT SURFACE WHEN SAID BLADE IS SUBSTANTIALLY VERTICALLY DISPOSED, A SHOE SURFACE DEFINING A CUTTING EDGE WITH THE LOWER EDGE OF SAID BLADE AND EXTENDING REARWARDLY FROM THE LOWER EDGE OF SAID TAPERING FRONT SURFACE AND TERMINATING IN A SUBSTANTIALLY VERTICALLY DISPOSED REAR CUTTING SURFACE, AND AN ELONGATED HANDLE MEMBER SECURED TO THE BACK SURFACE OF SAID CUTTING BLADE, SAID HANDLE MEMBER EXTENDING REARWARDLY OF SAID FRONT SURFACE.
References Cited (Backward Citations)
US2277528A
Cited
US2719316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |