Patent US3012172A successfully refreshed from Google Patents.
Patent US578431A successfully refreshed from Google Patents.
US578431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turning and drilling machine
Assignee: —
•
Filing: —
•
Granted: 1897-03-09
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Expires: 1914-03-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:31
CPC Classifications
B; B23; B23B; B23B49/00; B23B49/04; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5109; Y10T29/5113; Y10T29/5179; Y10T408/00; Y10T408/34; Y10T408/344; Y10T408/65; Y10T408/675; Y10T82/00; Y10T82/25; Y10T82/2583
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) | 1900-03-09 | 1900-09-08 | 1901-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1904-03-09 | 1904-09-08 | 1905-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1908-03-09 | 1908-09-08 | 1909-03-10 | $7700.00 | Window Closed / Lapsed |