US1724005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counterboring tool
Assignee: Individual
•
Filing: 1925-06-20
•
Granted: 1929-08-13
•
Expires: 1945-06-20
Abstract
No abstract record available.
Inventors
- 👤 Anker L Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:43
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B51/107; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/892; Y10T408/8923; Y10T408/909; Y10T408/9098; Y10T408/90993
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-08-12 | 1933-02-11 | 1933-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-08-12 | 1937-02-11 | 1937-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-08-12 | 1941-02-11 | 1941-08-13 | $7700.00 | Window Closed / Lapsed |