US2972657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector
Assignee: Individual
•
Filing: 1956-05-11
•
Granted: 1961-02-21
•
Expires: 1976-05-11
Abstract
No abstract record available.
Inventors
- 👤 Henry F Stemke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:52
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/02; H01R4/021; H01R4/022; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49194; Y10T29/49195
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US294549A
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US355611A
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US1640869A
Cited
US1702756A
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US2166109A
Cited
US2652623A
Cited
US2569667A
Cited
US2675532A
Cited
US2664844A
Cited
GB735835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-21 | 1964-08-22 | 1965-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-21 | 1968-08-22 | 1969-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-21 | 1972-08-22 | 1973-02-21 | $7700.00 | Window Closed / Lapsed |