Patent US3518356A successfully refreshed from Google Patents.
US3518356A
Expired / Lapsed
US
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Cover for a wall switch
Assignee: Individual
•
Filing: 1969-02-12
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Granted: 1970-06-30
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Expires: 1989-02-12
Abstract
No abstract record available.
Inventors
- 👤 George Friedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:03
CPC Classifications
H; H01; H01H; H01H23/00; H01H23/02; H01H23/04; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1840582A
Cited
US2740873A
Cited
US2934590A
Cited
US3011008A
Cited
US3155808A
Cited
US3197549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |