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US1895498A
Expired / Lapsed
US
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Electric regulator
Assignee: AT&T Inc
•
Filing: 1919-06-11
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Granted: 1933-01-31
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Expires: 1939-06-11
Abstract
No abstract record available.
Inventors
- 👤 Hugh M Stoller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:37
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/066; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/922; Y10S388/923; Y10S388/934
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) | 1936-01-31 | 1936-08-01 | 1937-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-31 | 1940-08-01 | 1941-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-31 | 1944-08-01 | 1945-01-31 | $7700.00 | Window Closed / Lapsed |