US749628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heater
Assignee: —
•
Filing: —
•
Granted: 1904-01-12
•
Expires: 1921-01-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:35
CPC Classifications
F; F16; F16L; F16L53/00; F16L53/30; F16L53/35; F16L53/38; Y; Y10; Y10T; Y10T137/00; Y10T137/5327; Y10T137/5497; Y10T137/5503; Y10T137/5515; Y10T137/5521; Y10T137/6851; Y10T137/7036
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1907-01-11 | 1907-07-13 | 1908-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-01-11 | 1911-07-13 | 1912-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-01-11 | 1915-07-13 | 1916-01-12 | $7700.00 | Window Closed / Lapsed |