Patent US543279A successfully refreshed from Google Patents.
Patent US2450759A successfully refreshed from Google Patents.
US2450759A
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Assignee: Individual
•
Filing: 1947-01-04
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Granted: 1948-10-05
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Expires: 1967-01-04
Abstract
No abstract record available.
Inventors
- 👤 Leech Wilson Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/14; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/938; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24281; Y10T428/24298; Y10T428/24314; Y10T428/31504; Y10T428/31678
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) | 1951-10-05 | 1952-04-05 | 1952-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-05 | 1956-04-05 | 1956-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-05 | 1960-04-05 | 1960-10-05 | $7700.00 | Window Closed / Lapsed |