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US2793752A
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Assignee: AV Roe Canada Ltd
•
Filing: 1954-09-07
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Granted: 1957-05-28
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Expires: 1974-09-07
Abstract
No abstract record available.
Inventors
- 👤 Jay Kenneth William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:34
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/114; B01D29/88; B01D29/90; B01D29/92; B01D35/00; B01D35/14; B01D35/147; B01D35/153
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US502583A
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US1076128A
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GB157669A
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US1496947A
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US1746336A
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US1909308A
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US2189361A
Cited
US2342669A
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US2518299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |