Patent US1044269A successfully refreshed from Google Patents.
US1044269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical heating unit.
Assignee: Individual
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Filing: 1910-02-28
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Granted: 1912-11-12
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Expires: 1930-02-28
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Shaler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:24
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/106; H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0208
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) | 1915-11-12 | 1916-05-13 | 1916-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-11-12 | 1920-05-13 | 1920-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-11-12 | 1924-05-13 | 1924-11-12 | $7700.00 | Window Closed / Lapsed |