US2938301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reed sounding unit
Assignee: Individual
•
Filing: 1953-09-30
•
Granted: 1960-05-31
•
Expires: 1973-09-30
Abstract
No abstract record available.
Inventors
- 👤 Freimauer Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:43
CPC Classifications
A; A63; A63H; A63H3/00; A63H3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1502835A
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US1043123A
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US1153207A
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US1273122A
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US1292113A
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US1568543A
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US1668785A
Cited
US2113535A
Cited
US2202896A
Cited
US2643839A
Cited
US2610012A
Cited
US2653412A
Cited
US2598956A
Cited
US2714275A
Cited
US2819558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |