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Patent US3100240A successfully refreshed from Google Patents.
US3100240A
Expired / Lapsed
US
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Extensible electric conduit
Assignee: Individual
•
Filing: 1956-07-17
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Granted: 1963-08-06
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Expires: 1976-07-17
Abstract
No abstract record available.
Inventors
- 👤 Robert W Mckirdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:11
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US59318A
Cited
US319326A
Cited
GB104401A
Cited
US2002739A
Cited
GB418668A
Cited
FR750824A
Cited
FR813439A
Cited
US2456015A
Cited
US2609417A
Cited
US2764625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |