US399747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joseph edwards
Assignee: —
•
Filing: —
•
Granted: 1889-03-19
•
Expires: 1906-03-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:14
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04
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) | 1892-03-18 | 1892-09-17 | 1893-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1896-03-18 | 1896-09-17 | 1897-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1900-03-19 | 1900-09-18 | 1901-03-20 | $7700.00 | Window Closed / Lapsed |