Patent US3759344A successfully refreshed from Google Patents.
Patent US978764A successfully refreshed from Google Patents.
US978764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens-grinding machine.
Assignee: URIAH J VIRGIN
•
Filing: 1910-03-09
•
Granted: 1910-12-13
•
Expires: 1930-03-09
Abstract
No abstract record available.
Inventors
- 👤 Joshua Anthony Lincoln
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:19
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/02; Y; Y10; Y10S; Y10S29/00; Y10S29/063; Y10S29/071; Y10S29/089; Y10S29/09
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) | 1913-12-12 | 1914-06-13 | 1914-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-12-12 | 1918-06-13 | 1918-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-12-12 | 1922-06-13 | 1922-12-13 | $7700.00 | Window Closed / Lapsed |