US836282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heating-pad.
Assignee: Individual
•
Filing: 1906-04-02
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Granted: 1906-11-20
•
Expires: 1926-04-02
Abstract
No abstract record available.
Inventors
- 👤 Luella W Shellhamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:55
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/68; H05B3/74; H05B3/746
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) | 1909-11-19 | 1910-05-21 | 1910-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-11-19 | 1914-05-21 | 1914-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-11-19 | 1918-05-21 | 1918-11-20 | $7700.00 | Window Closed / Lapsed |