Patent US2588035A successfully refreshed from Google Patents.
US2588035A
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Electronic indicator and viewing means for two variables
Assignee: Gilfillan Bros Inc
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Filing: 1946-12-16
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Granted: 1952-03-04
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Expires: 1966-12-16
Abstract
No abstract record available.
Inventors
- 👤 William T O'neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:35
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/28; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1924156A
Cited
US2231929A
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US2251984A
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US2419205A
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US2408848A
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US2438112A
Cited
US2427905A
Cited
US2446674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |