Patent US3470663A successfully refreshed from Google Patents.
US3470663A
Expired / Lapsed
US
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Pedestal unit for access floors
Assignee: Mercantile Safe Deposit and Trust Co
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Filing: 1968-05-24
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Granted: 1969-10-07
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Expires: 1988-05-24
Abstract
No abstract record available.
Inventors
- 👤 Donald L Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:04
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/024; E04F15/02447; E04F15/02464; E04F15/0247; E04F15/02482; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/974; Y10S411/979; Y10S411/98; Y10S411/982
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |