US2815595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Index tab
Assignee: Individual
•
Filing: 1956-03-16
•
Granted: 1957-12-10
•
Expires: 1976-03-16
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:45
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/10; B; B42; B42F; B42F19/00; G09F3/02; G09F2003/023; G09F2003/0241; Y; Y10; Y10S; Y10S24/00; Y10S24/11; Y10T; Y10T24/00; Y10T24/20; Y10T24/207
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US230937A
Cited
US794749A
Cited
US925154A
Cited
US1524478A
Cited
US1983878A
Cited
US2507659A
Cited
US2623311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |