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US2662509A
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Control apparatus
Assignee: Elsag Bailey Inc
•
Filing: 1950-02-18
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Granted: 1953-12-15
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Expires: 1970-02-18
Abstract
No abstract record available.
Inventors
- 👤 Frank H Fellows
- 👤 Harvard H Gorrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:57
CPC Classifications
F; F22; F22D; F22D11/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/6416; Y10T137/7287; Y10T137/7297; Y10T137/7329; Y10T137/7722; Y10T137/7758; Y10T137/7759
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2006035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |