US995393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for grinding variable curves.
Assignee: Individual
•
Filing: 1909-12-27
•
Granted: 1911-06-13
•
Expires: 1929-12-27
Abstract
No abstract record available.
Inventors
- 👤 Samuel Witmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:15
CPC Classifications
B; B24; B24B; B24B35/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301232; Y10T82/00; Y10T82/14
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) | 1914-06-12 | 1914-12-12 | 1915-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-06-12 | 1918-12-12 | 1919-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-06-12 | 1922-12-12 | 1923-06-13 | $7700.00 | Window Closed / Lapsed |