US2667676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1951-06-07
•
Granted: 1954-02-02
•
Expires: 1971-06-07
Abstract
No abstract record available.
Inventors
- 👤 Julian E Sampson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:48
CPC Classifications
A; A44; A44B; A44B9/00; A44B9/12; A44B9/14; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/346; Y10T24/3465; Y10T24/46; Y10T24/4604; Y10T24/463; Y10T24/4657; Y10T24/4661
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US479938A
Cited
US674847A
Cited
US897976A
Cited
US931023A
Cited
US1126488A
Cited
FR764129A
Cited
US2510250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |