US3418453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated dough raising oven
Assignee: NED T SPARKS
•
Filing: 1966-06-13
•
Granted: 1968-12-24
•
Expires: 1986-06-13
Abstract
No abstract record available.
Inventors
- 👤 Ned T Sparks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:17
CPC Classifications
A; A21; A21C; A21C13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE24296E
Cited
US1282195A
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US2134474A
Cited
US2571218A
Cited
US2499525A
Cited
US2864932A
Cited
US3152243A
Cited
US3327092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |