US3472698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon solar cell with cover glass bonded to cell by metal pattern
Assignee: National Aeronautics and Space Administration
•
Filing: 1967-05-18
•
Granted: 1969-10-14
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Expires: 1987-05-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph Mandelkorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:30
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/30; H10F77/306; H10F77/311; H10F77/315; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2779811A
Cited
US2794846A
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US3076861A
Cited
US3164795A
Cited
US3247428A
Cited
US3361594A
Cited
US3390020A
Cited
US3434885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |