US3060489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding door track assembly
Assignee: Ekco Products Co
•
Filing: 1959-11-05
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Granted: 1962-10-30
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Expires: 1979-11-05
Abstract
No abstract record available.
Inventors
- 👤 Dwight W Blackmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:50
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/0626; E05D15/063; E05D15/0634; E05Y; E05Y2800/00; E05Y2800/26; E05Y2800/292; E05Y2800/296; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE551954A
Cited
US1328442A
Cited
US2796626A
Cited
US2726420A
Cited
US2904848A
Cited
US2898623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |