US2624874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus for solving right triangles
Assignee: Individual
•
Filing: 1944-09-04
•
Granted: 1953-01-06
•
Expires: 1964-09-04
Abstract
No abstract record available.
Inventors
- 👤 Rines Robert Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:21
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/22; G01; G01B; G01B5/00; G01B5/0035; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/46; G01S7/00; G01S7/02; G01S7/40; G01S7/4004; G01S7/4026; G01S7/4034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2151917A
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US2412631A
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GB520778A
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GB543638A
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US2426189A
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US2400791A
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US2405231A
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US2430292A
Cited
US2437286A
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US2519397A
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US2409456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |