US1733840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terminal-box support
Assignee: Individual
•
Filing: 1924-11-03
•
Granted: 1929-10-29
•
Expires: 1944-11-03
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Tefft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:38
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/12; H02G3/123; Y; Y10; Y10S; Y10S248/00; Y10S248/906; Y10T; Y10T24/00; Y10T24/36; Y10T24/3626
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-10-28 | 1933-04-29 | 1933-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-10-28 | 1937-04-29 | 1937-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-10-28 | 1941-04-29 | 1941-10-29 | $7700.00 | Window Closed / Lapsed |