US2739006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knob retainer
Assignee: Emhart Industries Inc
•
Filing: 1952-08-09
•
Granted: 1956-03-20
•
Expires: 1972-08-09
Abstract
No abstract record available.
Inventors
- 👤 Leland H Fisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:02
CPC Classifications
E; E05; E05B; E05B3/00; E05B3/003; Y; Y10; Y10T; Y10T292/00; Y10T292/85; Y10T292/865; Y10T292/873
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1621174A
Cited
US2369494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |