US3048775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring small distances
Assignee: WAYNE KERR LAB Ltd
•
Filing: 1959-01-09
•
Granted: 1962-08-07
•
Expires: 1979-01-09
Abstract
No abstract record available.
Inventors
- 👤 Calvert Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:31
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/24; G01B; G01B7/00; G01B7/16; G01R; G01R17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB513771A
Cited
US2544012A
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US2719262A
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US2802173A
Cited
US2908166A
Cited
US2802178A
Cited
US2932970A
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US2880390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |