Patent US2841133A successfully refreshed from Google Patents.
US2841133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant heater and toaster
Assignee: American Infra Red Radiant Co Inc
•
Filing: 1955-03-07
•
Granted: 1958-07-01
•
Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 Treu Rheinisch-Westfa Revision
- 👤 Franken Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:03
CPC Classifications
F; F23; F23C; F23C99/00; F24; F24C; F24C3/00; F24C3/04; F24C3/06; F24C3/062; F23C2700/00; F23C2700/04; F23C2700/043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US585815A
Cited
US1304755A
Cited
FR540190A
Cited
US1567691A
Cited
US1677156A
Cited
US1878140A
Cited
US1841542A
Cited
US1867110A
Cited
GB488709A
Cited
GB574767A
Cited
FR1070317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |