US1493051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boring tool
Assignee: Individual
•
Filing: 1922-09-15
•
Granted: 1924-05-06
•
Expires: 1942-09-15
Abstract
No abstract record available.
Inventors
- 👤 William L O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:58
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03403; B23B29/03421; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17017; Y10T407/00; Y10T407/22; Y10T407/2222; Y10T407/2226; Y10T407/223; Y10T407/2234; Y10T407/2236
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) | 1927-05-06 | 1927-11-05 | 1928-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-05-06 | 1931-11-05 | 1932-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-05-06 | 1935-11-05 | 1936-05-06 | $7700.00 | Window Closed / Lapsed |