US2521822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector or terminal member
Assignee: Individual
•
Filing: 1947-11-18
•
Granted: 1950-09-12
•
Expires: 1967-11-18
Abstract
No abstract record available.
Inventors
- 👤 Boswell Ian Irvine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:03
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/62; H01R13/621; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/509
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US599434A
Cited
US904522A
Cited
US1975244A
Cited
US2125816A
Cited
US2124207A
Cited
US2183651A
Cited
US2286952A
Cited
US2386177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |