US2812834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable column
Assignee: Individual
•
Filing: 1953-09-17
•
Granted: 1957-11-12
•
Expires: 1973-09-17
Abstract
No abstract record available.
Inventors
- 👤 Jeune Louis L Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:08
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/30; E04B; E04B2/00; E04B2/74; E04B2/82; E04B2/825; E04C3/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |