US2662789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal
Assignee: Individual
•
Filing: 1949-04-12
•
Granted: 1953-12-15
•
Expires: 1969-04-12
Abstract
No abstract record available.
Inventors
- 👤 Hans F Stoffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:38
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; G09F3/03; G09F3/0305; G09F3/0323; Y; Y10; Y10T; Y10T292/00; Y10T292/48; Y10T292/50
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) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |