US2633524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical heating unit assembly
Assignee: Moffats Ltd
•
Filing: 1951-06-06
•
Granted: 1953-03-31
•
Expires: 1971-06-06
Abstract
No abstract record available.
Inventors
- 👤 Smith Elmore Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:29
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1567870A
Cited
GB446550A
Cited
US2234132A
Cited
US2418520A
Cited
US2357150A
Cited
US2548183A
Cited
US2457007A
Cited
US2565443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |