Patent US2824287A successfully refreshed from Google Patents.
US2601723A
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US
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Scraper employing razor blade
Assignee: CEDARBERG Manufacturing Co Inc
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Filing: 1947-12-15
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Granted: 1952-07-01
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Expires: 1967-12-15
Abstract
No abstract record available.
Inventors
- 👤 Keller Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:05
CPC Classifications
B; B26; B26B; B26B5/00; B26B5/006; A; A47; A47L; A47L1/00; A47L1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2291514A
Cited
US2404141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |