Patent US3315727A successfully refreshed from Google Patents.
US2339635A
Expired / Lapsed
US
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Control system
Assignee: General Electric Co
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Filing: 1940-09-18
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Granted: 1944-01-18
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Expires: 1960-09-18
Abstract
No abstract record available.
Inventors
- 👤 Chester I Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:19
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1906; G05D23/1913
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) | 1947-01-17 | 1947-07-19 | 1948-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-17 | 1951-07-19 | 1952-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-17 | 1955-07-19 | 1956-01-18 | $7700.00 | Window Closed / Lapsed |