US1267916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of control.
Assignee: Westinghouse Electric Corp
•
Filing: 1915-04-29
•
Granted: 1918-05-28
•
Expires: 1935-04-29
Abstract
No abstract record available.
Inventors
- 👤 Francis H Shepard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:33
CPC Classifications
B; B60; B60L; B60L15/00; B60L15/10; E; E05; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/55
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) | 1921-05-27 | 1921-11-26 | 1922-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-05-27 | 1925-11-26 | 1926-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-05-27 | 1929-11-26 | 1930-05-28 | $7700.00 | Window Closed / Lapsed |