US2583754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric fan and heater
Assignee: Meritor Inc
•
Filing: 1949-09-06
•
Granted: 1952-01-29
•
Expires: 1969-09-06
Abstract
No abstract record available.
Inventors
- 👤 John P Theisen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:23
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405; F24H3/0411; F24H3/0417
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1450589A
Cited
US1399688A
Cited
US1813023A
Cited
US1926537A
Cited
US1967757A
Cited
US1958007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |