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US1661017A
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Drilling machine
Assignee: DANBURY UNBREAKABLE TOOL Corp
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Filing: 1924-04-02
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Granted: 1928-02-28
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Expires: 1944-04-02
Abstract
No abstract record available.
Inventors
- 👤 Stolle John William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:22
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/10; B23Q7/106; Y; Y10; Y10S; Y10S118/00; Y10S118/11; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/455; Y10T408/50; Y10T408/51; Y10T408/55; Y10T408/563; Y10T408/5633; Y10T408/56337; Y10T408/65; Y10T408/675; Y10T408/6793; Y10T82/00; Y10T82/25; Y10T82/2514; Y10T82/2516
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) | 1931-02-27 | 1931-08-29 | 1932-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-02-27 | 1935-08-29 | 1936-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-02-27 | 1939-08-29 | 1940-02-28 | $7700.00 | Window Closed / Lapsed |