US2823016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseboard heater
Assignee: Individual
•
Filing: 1954-12-31
•
Granted: 1958-02-11
•
Expires: 1974-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl S Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:25
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28D21/00; F28D2021/0019; F28D2021/0035; Y; Y02; Y02B; Y02B30/00; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49364; Y10T29/49826; Y10T29/49908; Y10T29/49924; Y10T29/49938
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |