US1739724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording dynamometer and method of measuring load variations
Assignee: Union Oil Company of California
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Filing: 1927-07-18
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Granted: 1929-12-17
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Expires: 1947-07-18
Abstract
No abstract record available.
Inventors
- 👤 Francis W Lake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:11
CPC Classifications
G; G01; G01L; G01L3/00; G01L3/02; G01L3/14; G01L3/1485
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) | 1932-12-16 | 1933-06-17 | 1933-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-12-16 | 1937-06-17 | 1937-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-12-16 | 1941-06-17 | 1941-12-17 | $7700.00 | Window Closed / Lapsed |