Patent US1320744A successfully refreshed from Google Patents.
Patent US2463908A successfully refreshed from Google Patents.
US2463908A
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Heating apparatus
Assignee: EDWARD J ROSE
•
Filing: 1942-09-28
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Granted: 1949-03-08
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Expires: 1962-09-28
Abstract
No abstract record available.
Inventors
- 👤 Rose Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:52
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/02; B60H1/03; B60H1/032
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |