Patent US2738497A successfully refreshed from Google Patents.
US2738497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel mounted casing containing synchro-transformer, amplifier, and servomotor operated indicator
Assignee: American Machine and Metals Inc
•
Filing: 1952-04-24
•
Granted: 1956-03-13
•
Expires: 1972-04-24
Abstract
No abstract record available.
Inventors
- 👤 Philip W Harland
- 👤 Jacob T Kunz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:44
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2422714A
Cited
US2405568A
Cited
US2455618A
Cited
US2667609A
Cited
US2503739A
Cited
US2477673A
Cited
US2586010A
Cited
US2531492A
Cited
US2546628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |