Patent US2864301A successfully refreshed from Google Patents.
US2864301A
Expired / Lapsed
US
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Louvering system
Assignee: American Measuring Instruments Corp
•
Filing: 1953-11-13
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Granted: 1958-12-16
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Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
- 👤 Katz Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:58
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US676261A
Cited
US2107386A
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US2528130A
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US2646741A
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US2555009A
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US2621578A
Cited
US2632375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |