Patent US2308825A successfully refreshed from Google Patents.
US518767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductor-pipe and method of joining edges of same
Assignee: —
•
Filing: —
•
Granted: 1894-04-24
•
Expires: 1911-04-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:17
CPC Classifications
B; B21; B21D; B21D53/00; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/148; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49922; Y10T29/49936; Y10T428/00; Y10T428/12; Y10T428/12361; Y10T428/12368
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) | 1897-04-23 | 1897-10-23 | 1898-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-04-24 | 1901-10-24 | 1902-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-04-24 | 1905-10-24 | 1906-04-25 | $7700.00 | Window Closed / Lapsed |