US1559591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for loading and unloading enameling furnaces
Assignee: Individual
•
Filing: 1923-10-31
•
Granted: 1925-11-03
•
Expires: 1943-10-31
Abstract
No abstract record available.
Inventors
- 👤 Robert A Weaver
- 👤 Stockstrom Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:52
CPC Classifications
C; C23; C23D; C23D9/00; F; F27; F27B; F27B3/00; F27B3/10; F27B3/18
Claims Analysis
Total Claims: 0
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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) | 1928-11-02 | 1929-05-04 | 1929-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-11-02 | 1933-05-04 | 1933-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-11-02 | 1937-05-04 | 1937-11-03 | $7700.00 | Window Closed / Lapsed |