US1456663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor protector
Assignee: WILLIS WARNER Manufacturing Co
•
Filing: 1921-03-17
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Granted: 1923-05-29
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Expires: 1941-03-17
Abstract
No abstract record available.
Inventors
- 👤 Grover C Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:03
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/18; F01M1/20; F01M1/22; F01M1/26
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) | 1926-05-28 | 1926-11-27 | 1927-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-05-28 | 1930-11-27 | 1931-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-05-28 | 1934-11-27 | 1935-05-29 | $7700.00 | Window Closed / Lapsed |