US2604906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control valve for measuring apparatus
Assignee: T R MANTES
•
Filing: 1948-12-14
•
Granted: 1952-07-29
•
Expires: 1968-12-14
Abstract
No abstract record available.
Inventors
- 👤 Robert B Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:46
CPC Classifications
G; G01; G01G; G01G13/00; G01G13/24; G01G13/28; G01G13/295
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US826502A
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US1235825A
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US1283916A
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US1513038A
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US1717692A
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US2040864A
Cited
US1905014A
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US2440590A
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US2278655A
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US2408842A
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US2504638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |