US2982570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional duct type wireway construction
Assignee: Individual
•
Filing: 1959-02-04
•
Granted: 1961-05-02
•
Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 Eugene W Lohman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:40
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0608
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1277550A
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US1633798A
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US642923A
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US1619411A
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US1935690A
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GB549840A
Cited
US2353121A
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US2498753A
Cited
US2757946A
Cited
US2935343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |