Patent US3385344A successfully refreshed from Google Patents.
US3385344A
Expired / Lapsed
US
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Bi-fold door structure
Assignee: LEIGH PRODUCTS Inc
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Filing: 1966-03-10
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Granted: 1968-05-28
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Expires: 1986-03-10
Abstract
No abstract record available.
Inventors
- 👤 George M Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:14
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/48; E06B3/481
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US57240A
Cited
US1381744A
Cited
GB521705A
Cited
US2514033A
Cited
US2943675A
Cited
US3116782A
Cited
US3170506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |