Patent US2947799A successfully refreshed from Google Patents.
US2947799A
Expired / Lapsed
US
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Water-tight case for electrical apparatus
Assignee: US Philips Corp
•
Filing: 1956-05-09
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Granted: 1960-08-02
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Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 Finck Johan Christian Jacobus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:38
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/088; H02G15/00; H02G15/08; H02G15/10; H02G15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1130483A
Cited
NL13760C
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US2079697A
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US2197193A
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DE890076C
Cited
US2446277A
Cited
US2574000A
Cited
US2713700A
Cited
US2816947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |