US2789003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tong line socket
Assignee: Individual
•
Filing: 1953-04-24
•
Granted: 1957-04-16
•
Expires: 1973-04-24
Abstract
No abstract record available.
Inventors
- 👤 Paul O Wirkkala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:29
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/12; F; F16; F16G; F16G11/00; F16G11/14; F16G11/143; F16G11/146; Y; Y10; Y10T; Y10T24/00; Y10T24/39
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) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |