US2664335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stylus for recorders
Assignee: TECHNICON CARDIOGRAPH Corp
•
Filing: 1950-01-11
•
Granted: 1953-12-29
•
Expires: 1970-01-11
Abstract
No abstract record available.
Inventors
- 👤 Gorham George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:53
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/333; A61B5/338
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US322918A
Cited
US1306631A
Cited
US1820088A
Cited
US1901921A
Cited
US1871944A
Cited
US2474312A
Cited
US2454966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |