US2540346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial coupling
Assignee: Individual
•
Filing: 1945-11-14
•
Granted: 1951-02-06
•
Expires: 1965-11-14
Abstract
No abstract record available.
Inventors
- 👤 David M Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:53
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/02; F16B; F16B7/00; F16B7/22; Y; Y10; Y10T; Y10T403/00; Y10T403/65; Y10T403/655
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US238977A
Cited
GB191222337A
Cited
US1610977A
Cited
US2276571A
Cited
US2294091A
Cited
US2296993A
Cited
US2328294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |