US2987144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake for door track roller
Assignee: BYRNE DOORS Inc
•
Filing: 1957-10-07
•
Granted: 1961-06-06
•
Expires: 1977-10-07
Abstract
No abstract record available.
Inventors
- 👤 Thornton L Urquhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:32
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/066; E05D15/0665; E05F; E05F5/00; E05F5/003; E05Y; E05Y2201/00; E05Y2201/20; E05Y2201/21; E05Y2201/23; E05Y2201/246; E05Y2201/252; E05Y2201/26; E05Y2201/262; E05Y2201/266; E05Y2201/40; E05Y2201/46; E05Y2201/462; E05Y2201/47; E05Y2201/488; E05Y2201/60; E05Y2201/622; E05Y2201/688; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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US2823325A
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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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |