Patent US2036444A successfully refreshed from Google Patents.
US2036444A
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Assignee: RCA Corp
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Filing: 1934-12-29
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Granted: 1936-04-07
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Expires: 1954-12-29
Abstract
No abstract record available.
Inventors
- 👤 William A Tolson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:33
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/14; G01S3/58; G01S3/60; G01S3/64; G01C; G01C17/00; G01C17/02; G01C17/28; G01C17/30; G01R; G01R25/00; G01R29/00; G01R29/08; G01S3/28; G01S3/30; G01V; G01V3/00; G04; G04D; G04D7/00; G04D7/12; G04D7/1207; G04D7/1214
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) | 1939-04-07 | 1939-10-07 | 1940-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-07 | 1943-10-07 | 1944-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-07 | 1947-10-07 | 1948-04-07 | $7700.00 | Window Closed / Lapsed |