Patent US3012639A successfully refreshed from Google Patents.
US3012639A
Expired / Lapsed
US
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Panel structure
Assignee: Individual
•
Filing: 1951-01-12
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Granted: 1961-12-12
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Expires: 1971-01-12
Abstract
No abstract record available.
Inventors
- 👤 Pavlecka John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:09
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/02; E04B5/10; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6145; E04B1/6158; E04C; E04C2/00; E04C2/30; E04C2/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1654293A
Cited
US1988085A
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US2097598A
Cited
FR793334A
Cited
US2107418A
Cited
US2181831A
Cited
US2414628A
Cited
US2406501A
Cited
US2521279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |