US3011222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constructions for elevated sectional flooring
Assignee: Individual
•
Filing: 1960-10-18
•
Granted: 1961-12-05
•
Expires: 1980-10-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Spiselman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:42
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/024; E04F15/02405; E04F15/02435; E04F15/02441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1667313A
Cited
US1913290A
Cited
US2178535A
Cited
US2705820A
Cited
US2708016A
Cited
GB771380A
Cited
FR1166378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |