US3396490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door and frame constructions
Assignee: Individual
•
Filing: 1966-08-01
•
Granted: 1968-08-13
•
Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Dukas John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:36
CPC Classifications
E; E05; E05D; E05D7/00; E05D7/10; E05D7/1005; E05D7/1011; E06; E06B; E06B3/00; E06B3/70; E06B3/72; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR742089A
Cited
US1099415A
Cited
US2796628A
Cited
US2948366A
Cited
US2908050A
Cited
US3091819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |