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US2913238A
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US
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Assignee: Individual
•
Filing: 1955-10-24
•
Granted: 1959-11-17
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Expires: 1975-10-24
Abstract
No abstract record available.
Inventors
- 👤 Traverse G Tommervik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:50
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1174337A
Cited
US1407987A
Cited
US1547890A
Cited
US1623820A
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US1628781A
Cited
US2085345A
Cited
US2308874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |