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US2919358A
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Apparatus for converting radiant energy to electromechanical energy
Assignee: AT&T Inc
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Filing: 1955-03-23
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Granted: 1959-12-29
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Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Warren A Marrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:38
CPC Classifications
H; H02; H02K; H02K29/00; H02K29/06; H02K29/10; G; G04; G04C; G04C3/00; G04C3/08; G04C3/12; H02K11/00; H02K11/0094; H02K11/30; H02K11/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2669635A
Cited
US2710371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |