US3391688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar oven
Assignee: ROBERT A DERY
•
Filing: 1966-10-06
•
Granted: 1968-07-09
•
Expires: 1986-10-06
Abstract
No abstract record available.
Inventors
- 👤 Robert A Dery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:07
CPC Classifications
F; F24; F24S; F24S20/00; F24S20/30; Y; Y02; Y02B; Y02B40/00; Y02B40/18; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S126/00; Y10S126/907; Y10S126/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US412725A
Cited
US2994318A
Cited
US3028856A
Cited
US3200820A
Cited
US3174476A
Cited
US3279457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |