US1378941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for high-temperature uses
Assignee: Individual
•
Filing: 1919-08-25
•
Granted: 1921-05-24
•
Expires: 1939-08-25
Abstract
No abstract record available.
Inventors
- 👤 Frank A Fahrenwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:12
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/06; C22; C22C; C22C38/00; C22C38/18; C22C38/34
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) | 1924-05-23 | 1924-11-22 | 1925-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-05-23 | 1928-11-22 | 1929-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-05-23 | 1932-11-22 | 1933-05-24 | $7700.00 | Window Closed / Lapsed |