US2780440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand rail construction
Assignee: NEWMAN BROTHERS Inc
•
Filing: 1955-02-04
•
Granted: 1957-02-05
•
Expires: 1975-02-04
Abstract
No abstract record available.
Inventors
- 👤 Fred W Krieger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:13
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2557002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |