US2549362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating device of the hot-air type
Assignee: Silto S A Soc
•
Filing: 1949-02-19
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Granted: 1951-04-17
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Expires: 1969-02-19
Abstract
No abstract record available.
Inventors
- 👤 Bessiere Pierre Etienne
- 👤 Ponsy Louis Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:50
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/0025; B60H1/00264; B60H1/22; B60H1/2215; B60H1/2225; H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/105; H05B6/108; H05B6/109
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1335423A
Cited
US2088604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |