US2515154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer
Assignee: Sangamo Electric Co
•
Filing: 1946-07-15
•
Granted: 1950-07-11
•
Expires: 1966-07-15
Abstract
No abstract record available.
Inventors
- 👤 Charles H Lanphier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:29
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/08; B06B1/085; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US985524A
Cited
US2014411A
Cited
US1985251A
Cited
US1941477A
Cited
US2190666A
Cited
FR818828A
Cited
FR49261E
Cited
US2249835A
Cited
US2405605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |