Patent US2369887A successfully refreshed from Google Patents.
US2369887A
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Control mechanism
Assignee: Brown Instruments Co
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Filing: 1943-01-23
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Granted: 1945-02-20
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Expires: 1963-01-23
Abstract
No abstract record available.
Inventors
- 👤 Donald P Eckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:36
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/185; G05D23/1856; Y; Y10; Y10S; Y10S137/00; Y10S137/90; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0396; Y10T137/0753; Y10T137/0923; Y10T137/1842; Y10T137/1939; Y10T137/1963; Y10T137/2012; Y10T137/2278; Y10T137/2365; Y10T137/2409; Y10T137/6851; Y10T137/7036; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7792; Y10T137/8158; Y10T137/8175; Y10T137/8326
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) | 1948-02-20 | 1948-08-21 | 1949-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-20 | 1952-08-21 | 1953-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-20 | 1956-08-21 | 1957-02-20 | $7700.00 | Window Closed / Lapsed |