Patent US2597264A successfully refreshed from Google Patents.
US2597264A
Expired / Lapsed
US
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Radio-frequency operated receiving system consuming zero standby power
Assignee: Individual
•
Filing: 1948-07-03
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Granted: 1952-05-20
•
Expires: 1968-07-03
Abstract
No abstract record available.
Inventors
- 👤 Phillip W Russell
- 👤 Joseph L Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:57
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/02; H04W52/0209; H04W52/0261; H04W52/0274; H04W52/028; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE18579E
Cited
US1960083A
Cited
US2027214A
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US2139057A
Cited
US2151170A
Cited
US2238279A
Cited
US2387472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |