Patent US3699671A successfully refreshed from Google Patents.
Patent US641258A successfully refreshed from Google Patents.
US641258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw-cutting machine.
Assignee: BECHER MACHINERY Co
•
Filing: 1899-09-22
•
Granted: 1900-01-16
•
Expires: 1919-09-22
Abstract
No abstract record available.
Inventors
- 👤 James A Becher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:56
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B51/101; B23D; B23D77/00; B23D77/02; B23D77/04; B23D77/042; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8583; Y10T408/8588; Y10T408/85884
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1903-01-16 | 1903-07-18 | 1904-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-01-16 | 1907-07-18 | 1908-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-01-16 | 1911-07-18 | 1912-01-17 | $7700.00 | Window Closed / Lapsed |