Patent US2531116A successfully refreshed from Google Patents.
US2531116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rain operated automatic window closer
Assignee: Individual
•
Filing: 1945-09-08
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Granted: 1950-11-21
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Expires: 1965-09-08
Abstract
No abstract record available.
Inventors
- 👤 Donoghue Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:58
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/70; E05F15/71
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US548695A
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US784897A
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GB191225070A
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US1124969A
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US1147559A
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US1554674A
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US1655834A
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US2198488A
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US2203587A
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US2324145A
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US2345594A
Cited
US2359518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |