US2950445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor frequency standard
Assignee: Texas Instruments Inc
•
Filing: 1955-08-31
•
Granted: 1960-08-23
•
Expires: 1975-08-31
Abstract
No abstract record available.
Inventors
- 👤 Joe H Smith
- 👤 Mark S Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:13
CPC Classifications
H; H03; H03B; H03B19/00; H03B19/06; H03B19/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1874845A
Cited
US2235019A
Cited
GB510881A
Cited
US2258943A
Cited
US2383005A
Cited
US2451021A
Cited
GB676714A
Cited
US2602140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |