US2527115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank heater
Assignee: Individual
•
Filing: 1947-02-26
•
Granted: 1950-10-24
•
Expires: 1967-02-26
Abstract
No abstract record available.
Inventors
- 👤 Blake B Bosworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:33
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/78; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2511; Y10T137/6416; Y10T137/6606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1158586A
Cited
US1764139A
Cited
US1791254A
Cited
US1922927A
Cited
US1915704A
Cited
US1909464A
Cited
US1933173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |