US2666673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trestle
Assignee: Individual
•
Filing: 1950-09-26
•
Granted: 1954-01-19
•
Expires: 1970-09-26
Abstract
No abstract record available.
Inventors
- 👤 Claude Q Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:45
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/06; A; A47; A47B; A47B3/00; A47B3/08; A47B3/0809; A47B3/0815; A47B3/091; A47B3/0917; A47B2003/0821; A47B2200/00; A47B2200/0011; A47B2200/0016; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32081; Y10T403/32254; Y10T403/32262; Y10T403/32271
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) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |