US2048104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater
Assignee: Individual
•
Filing: 1932-03-02
•
Granted: 1936-07-21
•
Expires: 1952-03-02
Abstract
No abstract record available.
Inventors
- 👤 James C Clinefelter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:08
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/04; B29C35/041; B29C35/045; B29C35/049; B29K; B29K2021/00; Y; Y10; Y10T; Y10T292/00; Y10T292/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-07-21 | 1940-01-20 | 1940-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-07-21 | 1944-01-20 | 1944-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-07-21 | 1948-01-20 | 1948-07-21 | $7700.00 | Window Closed / Lapsed |