US2613308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant heater and tray
Assignee: GLASSHEAT Inc
•
Filing: 1950-03-16
•
Granted: 1952-10-07
•
Expires: 1970-03-16
Abstract
No abstract record available.
Inventors
- 👤 Mirand Walter La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:35
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/06; F24C7/062; F24C7/065; F24C7/04; F24C7/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US533795A
Cited
US1584281A
Cited
US1007125A
Cited
US1680768A
Cited
US1664171A
Cited
US2119680A
Cited
US2495788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |