Patent US1489393A successfully refreshed from Google Patents.
US1489393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for galvanizing chain
Assignee: N SLATER COMPANY Ltd
•
Filing: 1922-10-13
•
Granted: 1924-04-08
•
Expires: 1942-10-13
Abstract
No abstract record available.
Inventors
- 👤 Winford G Milne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:56
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/34; C23C2/36
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) | 1927-04-08 | 1927-10-08 | 1928-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-04-08 | 1931-10-08 | 1932-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-04-08 | 1935-10-08 | 1936-04-08 | $7700.00 | Window Closed / Lapsed |