US2597539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: JOHN THOMPSON BEACON WINDOWS L
•
Filing: 1945-12-20
•
Granted: 1952-05-20
•
Expires: 1965-12-20
Abstract
No abstract record available.
Inventors
- 👤 Smart Gerald Rupert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:35
CPC Classifications
E; E05; E05F; E05F17/00; E05F15/00; E05F15/60; E05F15/603; E05F15/632; E05F15/643; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB189515191A
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FR710296A
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US2059436A
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AT149869B
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GB495155A
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US2260013A
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FR884509A
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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) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |