US2839854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
City of paris
Assignee: —
•
Filing: —
•
Granted: 1958-06-24
•
Expires: 1975-06-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:16
CPC Classifications
G; G07; G07C; G07C1/00; G07C1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1847390A
Cited
US1850237A
Cited
US1985898A
Cited
US2100840A
Cited
US2324885A
Cited
US2604710A
Cited
US2603899A
Cited
US2591472A
Cited
US2588999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |