US2428099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool
Assignee: ROBERT H CLARK
•
Filing: 1945-01-19
•
Granted: 1947-09-30
•
Expires: 1965-01-19
Abstract
No abstract record available.
Inventors
- 👤 Smith Lawson Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B51/107; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/892; Y10T408/8923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US967789A
Cited
US1299856A
Cited
US1240701A
Cited
US1502652A
Cited
US1561463A
Cited
US1622094A
Cited
US2057769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |