Patent US1617231A successfully refreshed from Google Patents.
US1617231A
Expired / Lapsed
US
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Drill
Assignee: Individual
•
Filing: 1926-05-27
•
Granted: 1927-02-08
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Expires: 1946-05-27
Abstract
No abstract record available.
Inventors
- 👤 Burcham John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:47
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0042; B23Q11/0053; B25; B25H; B25H1/00; B25H1/0021; B25H1/0057; Y; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/55; Y10T408/561; Y10T408/5623; Y10T408/56245; Y10T408/65; Y10T408/675; Y10T408/6786
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) | 1930-02-07 | 1930-08-09 | 1931-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-02-07 | 1934-08-09 | 1935-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-02-07 | 1938-08-09 | 1939-02-08 | $7700.00 | Window Closed / Lapsed |