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US527050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic electric heater
Assignee: —
•
Filing: —
•
Granted: 1894-10-09
•
Expires: 1911-10-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:09
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/105; H05B6/108
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) | 1897-10-08 | 1898-04-09 | 1898-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-10-09 | 1902-04-10 | 1902-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-10-09 | 1906-04-10 | 1906-10-10 | $7700.00 | Window Closed / Lapsed |