Patent US2464670A successfully refreshed from Google Patents.
US2464670A
Expired / Lapsed
US
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Receptacle cover operator and lock
Assignee: Individual
•
Filing: 1944-09-01
•
Granted: 1949-03-15
•
Expires: 1964-09-01
Abstract
No abstract record available.
Inventors
- 👤 Carlson Carl Hilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:54
CPC Classifications
B; B65; B65F; B65F1/00; B65F1/14; B65F1/16; B65F1/1615
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US254324A
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US429968A
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US748848A
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DE498304C
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US689506A
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US1187040A
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GB128424A
Cited
FR670580A
Cited
US2038901A
Cited
US2265214A
Cited
US2280387A
Cited
US2339006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |