Patent US2916540A successfully refreshed from Google Patents.
US2916540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor mounted electrical conduit
Assignee: Russell & Stoll Co Inc
•
Filing: 1954-10-08
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Granted: 1959-12-08
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Expires: 1974-10-08
Abstract
No abstract record available.
Inventors
- 👤 Robert A Rostan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:57
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA498208A
Cited
US1396278A
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US1326959A
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US1498868A
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US1515324A
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US1901232A
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US1931574A
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US1982464A
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US2297139A
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US2536053A
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US2616327A
Cited
US2738892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |