Patent US673533A successfully refreshed from Google Patents.
US673533A
Expired / Lapsed
US
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Automatic drilling-machine.
Assignee: Individual
•
Filing: 1899-04-08
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Granted: 1901-05-07
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Expires: 1919-04-08
Abstract
No abstract record available.
Inventors
- 👤 George A Burwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:47
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50; B23Q1/54; B23Q1/5468; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5614; Y10T408/5616; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792; Y10T409/308848; Y10T409/308904
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) | 1904-05-06 | 1904-11-05 | 1905-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-05-06 | 1908-11-05 | 1909-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-05-06 | 1912-11-05 | 1913-05-07 | $7700.00 | Window Closed / Lapsed |