Patent US3440790A successfully refreshed from Google Patents.
US3440790A
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Corner assembly
Assignee: Winnebago Industries Inc
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Filing: 1966-11-17
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Granted: 1969-04-29
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Expires: 1986-11-17
Abstract
No abstract record available.
Inventors
- 👤 Marvin E Nerem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:38
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/32; E04B; E04B1/00; E04B1/38; E04B1/61; E04B2001/6195; E04B2/00; E04B2/72; E04B2/723; E04B2002/725; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49629
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1819345A
Cited
US2155969A
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US2135000A
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US2291171A
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US2635308A
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US3338012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |