US3433676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermophotovoltaic energy convertor with photocell mount
Assignee: Motors Liquidation Co
•
Filing: 1964-10-21
•
Granted: 1969-03-18
•
Expires: 1984-10-21
Abstract
No abstract record available.
Inventors
- 👤 Frank S Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:22
CPC Classifications
H; H02; H02S; H02S10/00; H02S10/30; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2034334A
Cited
DE655927C
Cited
US2428537A
Cited
US2625930A
Cited
US2983887A
Cited
US3005862A
Cited
US2989575A
Cited
US3116171A
Cited
US3232795A
Cited
US3268366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |