US2776484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waiotktnnr
Assignee: —
•
Filing: —
•
Granted: 1957-01-08
•
Expires: 1974-01-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:46
CPC Classifications
—
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US205519A
Cited
US454436A
Cited
US852470A
Cited
US1751227A
Cited
US1616040A
Cited
US1599800A
Cited
US1634120A
Cited
US1636062A
Cited
US1915244A
Cited
US2569022A
Cited
US2611952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |