US2647017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Industrial Research Institute
•
Filing: 1951-04-19
•
Granted: 1953-07-28
•
Expires: 1971-04-19
Abstract
No abstract record available.
Inventors
- 👤 James H Coulliette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:04
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/14; B05B1/24; B05B12/00; B05B12/08; B05B12/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US87181A
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US208962A
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US306352A
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US735756A
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FR325302A
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GB219021A
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US1697432A
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US2083780A
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US2136460A
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US2241086A
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US2462198A
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US2285305A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |