US1748556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boring machine
Assignee: Individual
•
Filing: 1927-09-12
•
Granted: 1930-02-25
•
Expires: 1947-09-12
Abstract
No abstract record available.
Inventors
- 👤 Mcknight Elliott John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:34
CPC Classifications
B; B23; B23B; B23B39/00; B23B39/16; B23B39/168; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5612; Y10T408/5626; Y10T408/5627; Y10T408/65; Y10T408/675; Y10T408/6786; Y10T408/91; Y10T408/93
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) | 1933-02-24 | 1933-08-26 | 1934-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-02-24 | 1937-08-26 | 1938-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-02-24 | 1941-08-26 | 1942-02-25 | $7700.00 | Window Closed / Lapsed |