US2874546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite pile
Assignee: Individual
•
Filing: 1954-09-10
•
Granted: 1959-02-24
•
Expires: 1974-09-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:06
CPC Classifications
E; E02; E02D; E02D13/00; E02D13/10; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4974; Y10T403/57; Y10T403/5706
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL18094C
Cited
US34835A
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US898013A
Cited
GB191323531A
Cited
US1971691A
Cited
US1916702A
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US2290855A
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US2701449A
Cited
US2782606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |