US3420018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underfloor electrical crossunder unit
Assignee: Hospitality Homes
•
Filing: 1967-10-18
•
Granted: 1969-01-07
•
Expires: 1987-10-18
Abstract
No abstract record available.
Inventors
- 👤 Frank W Fork
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/48; H; H02; H02G; H02G3/00; H02G3/28; H02G3/283
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE17290E
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CA659866A
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US1530200A
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US1626570A
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US1782779A
Cited
US1893268A
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US2089893A
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US2445197A
Cited
US3204378A
Cited
US3262238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |