US2537733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistor
Assignee: Individual
•
Filing: 1950-05-01
•
Granted: 1951-01-09
•
Expires: 1970-05-01
Abstract
No abstract record available.
Inventors
- 👤 Brenner Bert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:40
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1407525A
Cited
US1935897A
Cited
US2012465A
Cited
GB408642A
Cited
DE670897C
Cited
US2344597A
Cited
US2406172A
Cited
GB565807A
Cited
US2432888A
Cited
US2456261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |