US2438345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal oven
Assignee: Individual
•
Filing: 1946-12-05
•
Granted: 1948-03-23
•
Expires: 1966-12-05
Abstract
No abstract record available.
Inventors
- 👤 August E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:09
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1044269A
Cited
US1955359A
Cited
US1831151A
Cited
US1996569A
Cited
US1995355A
Cited
US2102783A
Cited
US2276930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-23 | 1951-09-22 | 1952-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-23 | 1955-09-22 | 1956-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-23 | 1959-09-22 | 1960-03-23 | $7700.00 | Window Closed / Lapsed |