US2619345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door operating device
Assignee: BYRNE DOORS Inc
•
Filing: 1949-02-26
•
Granted: 1952-11-25
•
Expires: 1969-02-26
Abstract
No abstract record available.
Inventors
- 👤 Charles S Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:04
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; 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; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1254696A
Cited
US1465695A
Cited
US1649797A
Cited
US1928611A
Cited
US1962475A
Cited
US2110231A
Cited
US2390117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |