Patent US2626004A successfully refreshed from Google Patents.
US2626004A
Expired / Lapsed
US
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Apparatus for recording time intervals
Assignee: Individual
•
Filing: 1950-01-19
•
Granted: 1953-01-20
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Expires: 1970-01-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Hasbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:22
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/24; G01V1/26; G04; G04F; G04F13/00; G04F13/02; G04F13/026
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) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |