Patent US2992711A successfully refreshed from Google Patents.
US2992711A
Expired / Lapsed
US
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Reinforcing means for attaching structural members to lightweight corrugated panels
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1959-11-16
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Granted: 1961-07-18
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Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 Mitchell Bruce
- 👤 William E Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/3405; E04C2002/3444; E04C2002/3455; E04C2002/3472
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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |