US636203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric resistance.
Assignee: Individual
•
Filing: 1898-04-19
•
Granted: 1899-10-31
•
Expires: 1918-04-19
Abstract
No abstract record available.
Inventors
- 👤 Hugo Helberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0266; H05K1/0268; B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24545; Y10T428/24595; Y10T428/31504; Y10T428/31652; Y10T428/31656
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) | 1902-10-31 | 1903-05-02 | 1903-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-10-31 | 1907-05-02 | 1907-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-10-31 | 1911-05-02 | 1911-11-01 | $7700.00 | Window Closed / Lapsed |