US1481113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heater
Assignee: Individual
•
Filing: 1922-04-10
•
Granted: 1924-01-15
•
Expires: 1942-04-10
Abstract
No abstract record available.
Inventors
- 👤 Loren S Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:06
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B2203/00; H05B2203/002; H05B2203/003; H05B2203/017
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) | 1927-01-14 | 1927-07-16 | 1928-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-01-14 | 1931-07-16 | 1932-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-01-14 | 1935-07-16 | 1936-01-15 | $7700.00 | Window Closed / Lapsed |