Patent US3424729A successfully refreshed from Google Patents.
US1997318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyance of goods through furnaces and the like
Assignee: Individual
•
Filing: 1934-02-19
•
Granted: 1935-04-09
•
Expires: 1954-02-19
Abstract
No abstract record available.
Inventors
- 👤 Smallwood Alfred
- 👤 Fallon John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:01
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/201; F27B9/202; F27B9/205
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) | 1938-04-08 | 1938-10-08 | 1939-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-08 | 1942-10-08 | 1943-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-08 | 1946-10-08 | 1947-04-09 | $7700.00 | Window Closed / Lapsed |