Patent US3055259A successfully refreshed from Google Patents.
US3055259A
Expired / Lapsed
US
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Optical measuring devices
Assignee: Optical Measuring Tools Ltd
•
Filing: 1958-03-03
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Granted: 1962-09-25
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Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Dietrich Cornelius Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:34
CPC Classifications
G; G01; G01M; G01M11/00; G01M11/02; G01M11/0228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1451302A
Cited
GB509424A
Cited
US2312261A
Cited
US2336330A
Cited
US2505983A
Cited
DE899112C
Cited
US2785604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |