US2479681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handley
Assignee: —
•
Filing: —
•
Granted: 1949-08-23
•
Expires: 1966-08-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:54
CPC Classifications
G; G07; G07C; G07C1/00; G07C1/22; G07C1/24; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3902
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) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |