US2539083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door handle
Assignee: Keeler Brass Co
•
Filing: 1947-05-29
•
Granted: 1951-01-23
•
Expires: 1967-05-29
Abstract
No abstract record available.
Inventors
- 👤 Gerald V Jakeway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:04
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/10; E05B85/14; E05B7/00; Y; Y10; Y10T; Y10T292/00; Y10T292/57; Y10T292/85
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2136662A
Cited
US2404845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |