US2628348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for measuring the ratio of pulse width to pulse recurrence period of recurrent pulse signals
Assignee: Individual
•
Filing: 1942-09-26
•
Granted: 1953-02-10
•
Expires: 1962-09-26
Abstract
No abstract record available.
Inventors
- 👤 Robert M Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:40
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2009459A
Cited
US2055883A
Cited
US2061734A
Cited
GB469417A
Cited
US2144843A
Cited
US2218642A
Cited
US2228367A
Cited
US2404527A
Cited
US2313666A
Cited
US2309560A
Cited
US2307316A
Cited
US2301195A
Cited
US2346093A
Cited
US2407323A
Cited
US2336929A
Cited
US2333683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |