US2620875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring apparatus
Assignee: Individual
•
Filing: 1949-04-02
•
Granted: 1952-12-09
•
Expires: 1969-04-02
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:29
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/02; Y; Y10; Y10T; Y10T408/00; Y10T408/21; Y10T82/00; Y10T82/16; Y10T82/16426; Y10T82/16967; Y10T82/25; Y10T82/2572
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US969858A
Cited
US1415099A
Cited
US1516168A
Cited
US1936331A
Cited
US1930295A
Cited
US2205389A
Cited
US2261214A
Cited
US2325431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |