Patent US2559334A successfully refreshed from Google Patents.
US2559334A
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Assignee: Nutone Inc
•
Filing: 1945-11-09
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Granted: 1951-07-03
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Expires: 1965-11-09
Abstract
No abstract record available.
Inventors
- 👤 Lowell M Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:14
CPC Classifications
G; G10; G10K; G10K1/00; G10K1/06; G10K1/08; G10K1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US485542A
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US656603A
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US686301A
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US818874A
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US890341A
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US1100672A
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US1595359A
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US2133911A
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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) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |