Patent US3063471A successfully refreshed from Google Patents.
US3063471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor feeder duct
Assignee: Individual
•
Filing: 1959-01-09
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Granted: 1962-11-13
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Expires: 1979-01-09
Abstract
No abstract record available.
Inventors
- 👤 Victor S Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:56
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/28; H02G3/283; E; E04; E04B; E04B5/00; E04B5/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1103984A
Cited
US2081197A
Cited
US2049184A
Cited
AT151849B
Cited
GB576323A
Cited
US2445197A
Cited
US2672905A
Cited
US2812654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |