US2810620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
L date time are
Assignee: —
•
Filing: —
•
Granted: 1957-10-22
•
Expires: 1974-10-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:21
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G08G1/0104; G08G1/0108; G08G1/012; G07; G07B; G07B15/00; G07B15/06; G07B15/063; G07C; G07C5/00; G07C5/08; G07C5/0841; G07C5/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2672393A
Cited
US2621101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |