US2987909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking cover assembly for electrical wall outlet boxes
Assignee: Individual
•
Filing: 1958-11-25
•
Granted: 1961-06-13
•
Expires: 1978-11-25
Abstract
No abstract record available.
Inventors
- 👤 William I Shlank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:21
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/14; E; E05; E05B; E05B65/00; E05B65/006; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/554; Y10T70/5562; Y10T70/5575; Y10T70/558; Y10T70/5584
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1187534A
Cited
US1190643A
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US1713101A
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US2297862A
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US2399016A
Cited
US2493366A
Cited
US2594407A
Cited
US2603546A
Cited
US2643787A
Cited
US2751105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |