US2492508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window operating mechanism
Assignee: Individual
•
Filing: 1945-11-09
•
Granted: 1949-12-27
•
Expires: 1965-11-09
Abstract
No abstract record available.
Inventors
- 👤 Michael J Tracy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:55
CPC Classifications
E; E05; E05F; E05F17/00; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US474720A
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US1084222A
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US1093099A
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US1185512A
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US1157760A
Cited
US1559958A
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US1983152A
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US1923233A
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US2267140A
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US2331823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |