US1585344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallurgical apparatus
Assignee: Individual
•
Filing: 1924-08-19
•
Granted: 1926-05-18
•
Expires: 1944-08-19
Abstract
No abstract record available.
Inventors
- 👤 William E Greenawalt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:53
CPC Classifications
F; F27; F27D; F27D11/00; F27D11/02; F27D11/04; C; C21; C21B; C21B13/00; C21B13/02; C21B13/023; C21B13/026; C21B13/12; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
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) | 1929-05-17 | 1929-11-16 | 1930-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-05-17 | 1933-11-16 | 1934-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-05-17 | 1937-11-16 | 1938-05-18 | $7700.00 | Window Closed / Lapsed |