Patent US649572A successfully refreshed from Google Patents.
US649572A
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US
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Controlling and distributing electric energy.
Assignee: Individual
•
Filing: 1900-02-24
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Granted: 1900-05-15
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Expires: 1920-02-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick William Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:18
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/19256; Y10T74/1926; Y10T74/19265
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) | 1903-05-15 | 1903-11-14 | 1904-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-05-15 | 1907-11-14 | 1908-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-05-15 | 1911-11-14 | 1912-05-15 | $7700.00 | Window Closed / Lapsed |