US2888546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Immersion electric heater
Assignee: Individual
•
Filing: 1957-09-16
•
Granted: 1959-05-26
•
Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 Theodore S Kinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:19
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/78; H05B3/80
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1086646A
Cited
US1927035A
Cited
US1834014A
Cited
US1858003A
Cited
US2097981A
Cited
US2419655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |