Patent US2789206A successfully refreshed from Google Patents.
US2789206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument dial illuminator
Assignee: American Machine and Metals Inc
•
Filing: 1954-04-06
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Granted: 1957-04-16
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Expires: 1974-04-06
Abstract
No abstract record available.
Inventors
- 👤 Ambrose E Van Le
- 👤 Philip W Harland
- 👤 Ralph D Waite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:24
CPC Classifications
G; G01; G01D; G01D11/00; G01D11/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1493988A
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US1526691A
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US2018536A
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US2020905A
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US2085887A
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US2137972A
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US2308704A
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US2413381A
Cited
US2518726A
Cited
US2696550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |