Patent US2820295A successfully refreshed from Google Patents.
US2820295A
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US
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Apparatus for measuring linear dimensions
Assignee: Mullard Radio Valve Co Ltd
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Filing: 1954-07-13
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Granted: 1958-01-21
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Expires: 1974-07-13
Abstract
No abstract record available.
Inventors
- 👤 Fenemore Ronald William
- 👤 Borley Colin Roderick
- 👤 Jellis Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:45
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/02; G01B3/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/4956; Y10T29/4981; Y10T408/00; Y10T408/03
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) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |