US2689337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaped metal contact
Assignee: BURTT
•
Filing: 1952-04-04
•
Granted: 1954-09-14
•
Expires: 1972-04-04
Abstract
No abstract record available.
Inventors
- 👤 Horatio H Burtt
- 👤 Tar Donald R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:30
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/10; H01R13/11; H01R13/111; H01R13/40; H01R13/42; H01R13/428; H01R13/432
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |