US2547765A
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Assignee: W L MAXSON CORP
•
Filing: 1948-11-05
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Granted: 1951-04-03
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Expires: 1968-11-05
Abstract
No abstract record available.
Inventors
- 👤 Philip A Lund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:07
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/12; H01H13/14; H01H13/18; H01H13/186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2172731A
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US2284644A
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US2181829A
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US2281808A
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US2338365A
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US2431747A
Cited
US2454341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |