US2528688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thyratron control system
Assignee: MOTORSPEED Corp
•
Filing: 1948-03-01
•
Granted: 1950-11-07
•
Expires: 1968-03-01
Abstract
No abstract record available.
Inventors
- 👤 Chin Pao Hsiung
- 👤 Berthold A Knauth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:56
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/26; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/913; Y10S388/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2082496A
Cited
US2236086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |