US774594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of constructing tunnels.
Assignee: S PEARSON AND SON Ltd
•
Filing: 1904-06-16
•
Granted: 1904-11-08
•
Expires: 1924-06-16
Abstract
No abstract record available.
Inventors
- 👤 Ernest William Moir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:14
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/11; E02D3/115
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) | 1907-11-08 | 1908-05-09 | 1908-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-11-08 | 1912-05-09 | 1912-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-11-08 | 1916-05-09 | 1916-11-08 | $7700.00 | Window Closed / Lapsed |