US2428537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Series photoelectric cells
Assignee: Individual
•
Filing: 1943-07-16
•
Granted: 1947-10-07
•
Expires: 1963-07-16
Abstract
No abstract record available.
Inventors
- 👤 Veszi Gabor Adam
- 👤 Markus Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/042; H10F; H10F19/00; H10F19/50; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1848655A
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US1900018A
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DE655927C
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US2000642A
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DE641081C
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DE649335C
Cited
US2140994A
Cited
US2137831A
Cited
US2305576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |