US2669273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brief case
Assignee: Individual
•
Filing: 1950-06-12
•
Granted: 1954-02-16
•
Expires: 1970-06-12
Abstract
No abstract record available.
Inventors
- 👤 Charles W Keirsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:40
CPC Classifications
A; A45; A45C; A45C3/00; A45C3/02; Y; Y10; Y10S; Y10S190/00; Y10S190/90; Y10S190/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US427090A
Cited
US1193809A
Cited
US1097290A
Cited
US1026264A
Cited
FR677403A
Cited
US1947718A
Cited
US2324436A
Cited
US2337860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |