US2467349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated device
Assignee: Individual
•
Filing: 1943-08-13
•
Granted: 1949-04-12
•
Expires: 1963-08-13
Abstract
No abstract record available.
Inventors
- 👤 Gerrit Van Daam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B2203/00; H05B2203/002; H05B2203/003; H05B2203/014; H05B2203/015; H05B2203/017
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US718896A
Cited
US723797A
Cited
US1031204A
Cited
US1036632A
Cited
US1379356A
Cited
US1368412A
Cited
US1456223A
Cited
US1655838A
Cited
US1741054A
Cited
US1921343A
Cited
US1837117A
Cited
US2018512A
Cited
US2025586A
Cited
US2162021A
Cited
US2138745A
Cited
US2251697A
Cited
US2298181A
Cited
US2289151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |