Patent US1297994A successfully refreshed from Google Patents.
US2460199A
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Measurement or variation of physical states of materials
Assignee: Ferranti International PLC
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Filing: 1946-10-21
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Granted: 1949-01-25
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Expires: 1966-10-21
Abstract
No abstract record available.
Inventors
- 👤 Taylor Maurice Kenyon
- 👤 Knowles Alfred Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:57
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/22; G01N27/223; Y; Y10; Y10S; Y10S131/00; Y10S131/908; Y10S131/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-25 | 1952-07-26 | 1953-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-25 | 1956-07-26 | 1957-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-25 | 1960-07-26 | 1961-01-25 | $7700.00 | Window Closed / Lapsed |