US1748249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boring machine
Assignee: GEORGE H ROBERTS
•
Filing: 1928-06-18
•
Granted: 1930-02-25
•
Expires: 1948-06-18
Abstract
No abstract record available.
Inventors
- 👤 John R Skoverski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:30
CPC Classifications
A; A21; A21C; A21C15/00; A21C15/04; Y; Y10; Y10T; Y10T408/00; Y10T408/47; Y10T408/50
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 |