US2137133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for integrating variable quantities
Assignee: General Electric Co
•
Filing: 1934-06-18
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Granted: 1938-11-15
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Expires: 1954-06-18
Abstract
No abstract record available.
Inventors
- 👤 Dallmann Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:40
CPC Classifications
G; G01; G01K; G01K17/00; G01K17/06; G01K17/08; G01K17/10; G01K17/12; G01K17/16
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) | 1941-11-14 | 1942-05-16 | 1942-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-14 | 1946-05-16 | 1946-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-14 | 1950-05-16 | 1950-11-15 | $7700.00 | Window Closed / Lapsed |