US1749718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric supply system
Assignee: EDISON ELECTRIC APPLIANCE CO
•
Filing: 1926-12-13
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Granted: 1930-03-04
•
Expires: 1946-12-13
Abstract
No abstract record available.
Inventors
- 👤 Charles P Randolph
- 👤 Francis H Mccormick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:45
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213; Y; Y10; Y10S; Y10S200/00; Y10S200/28
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) | 1933-03-03 | 1933-09-02 | 1934-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-03-03 | 1937-09-02 | 1938-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-03-03 | 1941-09-02 | 1942-03-04 | $7700.00 | Window Closed / Lapsed |