US2978533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable splice enclosure
Assignee: ROBERTSON ELECTRIC CO Inc
•
Filing: 1957-12-26
•
Granted: 1961-04-04
•
Expires: 1977-12-26
Abstract
No abstract record available.
Inventors
- 👤 Lee J Colbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:26
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/115; H02G15/117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US769248A
Cited
US992738A
Cited
US1620693A
Cited
US2065315A
Cited
US2595787A
Cited
US2635132A
Cited
US2594282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |