US3437818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protection of serially connected solar cells against open circuits by the use of shunting diode
Assignee: National Aeronautics and Space Administration
•
Filing: 1966-10-19
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Granted: 1969-04-08
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Expires: 1986-10-19
Abstract
No abstract record available.
Inventors
- 👤 Russell D Shattuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:22
CPC Classifications
H; H02; H02H; H02H7/00; H10; H10F; H10F19/00; H10F19/70; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y10; Y10S; Y10S136/00; Y10S136/291; Y10S136/292
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3310679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |