US3457853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous hamburger grill
Assignee: Individual
•
Filing: 1968-03-20
•
Granted: 1969-07-29
•
Expires: 1988-03-20
Abstract
No abstract record available.
Inventors
- 👤 Fred W Morley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:54
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/04; A47J37/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1471727A
Cited
US1621234A
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US1881126A
Cited
US2907267A
Cited
US3058434A
Cited
US3012496A
Cited
US3291036A
Cited
US3379141A
Cited
US3380377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |