US3394513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sandwich panel attachment reinforcement
Assignee: Winnebago Industries Inc
•
Filing: 1966-03-14
•
Granted: 1968-07-30
•
Expires: 1986-03-14
Abstract
No abstract record available.
Inventors
- 👤 Marvin E Nerem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:20
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/04; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |